#3 Review

Lee saw c cardinals and 5 robins in his yard. Choose the expression that shows the number of birds Lee saw in all.

• c - 5

• 5c

• c/5

• c + 5

Elijah bought cupcakes for $2 each.

Write an expression to show how much he would pay for c cupcakes.

• 2 - c

• 2 + c

• 2c

• 2/c

Elijah bought cupcakes for $2 each.

Let t represent the total money Elijah pays and c represent the number of cupcakes he buys.

• t = 2c

• c = 2t

Sam is paid $16.75 per hour at her job.

Write an expression that shows how much Sam would be paid for working x hours.

• 16.75x

• 16.75/x

• 16.75 - x

• 16.75 + x

Sam is paid $16.75 per hour at her job.

Let x = how many hours she works.

Let y = how much money Sam makes

Which is correct?

• x is dependent

  y is independent

  and

  y = 16.75x

• x is dependent

  y is independent

  and

  x = 16.75 + y

• x is independent

  y is dependent

  and

  y = 16.75x

• x is independent

  y is dependent

  and

  x = 16.75 + y

Abigail signed up for a gym membership 10 weeks after Gabe.

Let a represent the number of weeks Abigail has been a gym member and g represent the number of weeks Gabe has been a gym member.

Which equation models the situation?

• a = g + 10

• g = a + 10

• g = 10a

• a = g10

Tom walks to and from school each day. Each round trip is 8 kilometers long.

Let t represent the number of round trips Tom makes and k represent the total number of kilometers he walks.

Which equation models the situation?

• k = 8t

• t = 8k

• k = t + 7

• t = k + 7

A zoo's gift shop ordered 20 stuffed koalas. They came in boxes that each held b koalas.

Choose the expression that shows how many boxes there were.

• 20b

• 20 - b

• 20 + b

• 20 / b

What inequality does this number line show?

• x ≥ 4

• x > 4

• x ≤ 4

• x < 4

What inequality does this number line show?

• x ≥ 5

• x > 5

• x ≤ 5

• x < 5