What is the perimeter of a regular octagon if each of its sides is two centimeters (cm) in lenght?

If $$x^2<16$$ , what is the sum of all the positive integers that satisfy the inequality?

Rick is twice as old as Zach, but Zach is three times as old as Mary was three years ago. If Mary is eight years old, how old is Rick?

0 + -2 + -4 + -6 + ... + -18 + -20 = ?

Mackenzie makes a necklace using the pattern of 2 red beads followed by 3 blue beads. She uses a total of 75 beads for the necklace. How many red beads does Mackenzie use?

The running shoes Genny bought at a 20% off sale were originally priced at $70. Before tax was added, how much money did Genny save by buying the shoes on sale?

The profit, P, a school makes selling x tickets to a play can be determined by the formula $$P=8x-400$$  . If the school made a profit of $1200 on the play, how many tickets were sold?

If a yardstick casts a shadow 10 feet long, how tall is a flagpole which casts a shadow 225 feet long at the same time?

If a water tank weighs 240 metric tons when 40% full and 300 metric tons when completely full, how many metric tons does it weigh when it is empty?

Martin correctly answered 90% of the questions on a math test that contained exactly 40 questions. How many of the questions did he answer incorrectly?

The number 519 is formed using the digits 5, 1, and 9. The three digits of this number are rearranged to form the largest possible and then the smallest possible three digit numbers. What is the difference between these largest and smallest numbers?

1,924,754

Even? ...or... Odd?

  Let U = {all  students}, 

        M = {no. of students who like math},

        S = {no. of students who like science}  and

        E = {no. of students who like English},

How many students like math or science?

RULE: A student who misses a lesson due to absence for a valid reason is not responsible for initiating an extra encounter with his subject teacher.

3 + 3 =

Krishnan gets a personal loan from Bank K with a flat interest rate of 8% per annum. If he repays over 5 years with a monthly instalment of RM1400, how much personal loan does he get?

37）说出星星的数量。

Ordinary students cannot understand math, but must memorize the rules.

Getting the right answer is more important than understanding why the answer works.

I can tackle a challenging math problem.

Find the perimeter of a square with side length 15 units.

In an experiment, Fatimah heated som water. The graph shows how the temperature changed. What was the temperature at the start?

In an experiment, Fatimah heated som water. The graph shows how the temperature changed. What was the temperature at the start?

If each interior angle of a rectangle is 90°, is it true that the measurement of each interior angle of a 20-sided polygon is 162°?

How many Vertices, Edges and Faces does a Triangular Pyramid have?

Solve for x and y. Given that 3x+2y=12 and 2x+2y=10 by elimination

The measure of one of the angles is twice the measure of its complement. What are the measure of the two angles?

The measure of one of the angles is twice the measure of its complement. What are the measure of the two angles?

Choose the correct graph that best describes the inequality.

If it took me 5 hours to drive 400km, what was the average speed that I was travelling at?

Which of the Five Pillars of Islam is described below:

"Muslims must pray five times a day in the direction of the holy city of Mecca."

Which of the Five Pillars of Islam is described below:

"Muslims must make a religious journey once in their lifetime to the holy city of Mecca."

It is a branch of mathematics which generalizes the facts of arithmetic.

Which of the following is an equivalent fraction to 5/6? Draw to explain your thinking.

What percentage of apples are not ripe if 1 out of every 5 apples cannot be sold because they are not ripe?

Q complement (Q’) means element/s in U

   which are not in Q. Given the diagram at

    the right, which of the   following sets shows Q  

    complement?

A group of 45 students were asked whether they use either Facebook or Tiktok. 25 of their students use Facebook and 30 use Tiktok. If 15 students use both Facebook and Tiktok. How many students use Tiktok only?