Math 7 Review

What is a discount?

• A reduction in the price of an item.

• An increase in the price of an item.

• A type of tax applied to purchases.

• A fee charged for late payments.

What is the difference between a mean and a median?

• Mean is the average of a set of numbers, while median is the middle value when the numbers are arranged in order.

• Mean is the middle value of a set of numbers, while median is the average of the numbers.

• Mean is always greater than median in a data set, while median can be less than mean.

• Mean and median are the same and can be used interchangeably.

What does it mean to solve an inequality?

• To find the values of the variable that make the inequality true.

• To determine the maximum value of the variable.

• To graph the inequality on a number line.

• To find the roots of the equation related to the inequality.

Solve this inequality: -2x + 14 > 42

• x < 14

• x > 14

• x = 14

• x ≤ 14

What is the formula for finding the new price after a discount?

• New Price = Original Price - (Original Price x Discount Rate)

• New Price = Original Price + (Original Price x Discount Rate)

• New Price = Original Price / (1 - Discount Rate)

• New Price = Original Price x (1 - Discount Rate)

How do you calculate a percentage discount?

• Percentage discount = (Discount amount / Original price) x 100.

• Percentage discount = (Original price / Discount amount) x 100.

• Percentage discount = (Discount amount x Original price) / 100.

• Percentage discount = (Original price - Discount amount) x 100.

What is the probability of choosing a red hair clip from 10 clips (2 purple, 3 blue, 4 red, 1 pink)?

• 1/5

• 1/2

• 2/5

• 3/10

If I have 40 marbles, 1/2 are black, 1/4 are blue, how many are white?

• 5

• 10

• 15

• 20

A pair of shoes originally costs $42. If it is 15% off, what is the new price?

• $36.00

• $35.70

• $38.50

• $40.00

What is the total number of outcomes when rolling a six-sided die?

• 4 outcomes

• 5 outcomes

• 6 outcomes

• 7 outcomes