Expressions and Equations

Which inequality represents the following:
You spent less than 5 hours on homework each night.

• x > 5

• x < 5

• x ≤ 5

• x ≥ 5

Erin can read at least 80 words per minute. Write an inequality to represent this situation. 

• x > 80

• x < 80

• x ≥ 80

• x ≤ 80

Simplify the expression.
3(5x - 8)

• 15x + 24

• 15x - 8

• 5x- 8

• 15x - 24

What inequality does the number line represent?

• x ≤ 4

• x ≥ -4

• x < -4

• x < 4

Ms. Henriquez's brother Alvaro is 5 years older than twice Ms. Henriquez age. Write an expression that represents the relationship of max's age in terms of Ms. Henriquez's age, x.

• 5x + 2

• 2x + 5

• 10x

• 2 + 7 + x

For a show, a band will be paid $150 plus $5 for each ticket sold.  Write an equation for their total payment (p) related to the number of tickets they sell (t).

• p = 150 + 5t

• p = 5 + 150t

• p + 5t = 150

• 5t - 150 = p

Which expression is equivalent to 2(3v + 7)

• 6v-7

• 3v+14

• 6v+7

• 6v+14

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

Which expression represents this phrase?

five times the sum of nineteen and a number k

• 5(19k)

• 5(19) + k

• 5 + 19k

• 5(19 + k)

How many terms are in the expression?

6(4x) + 3y - 12x + 5(3x)

• 2

• 3

• 4

• 6