Review Expressions

Which expression is not equivalent to 18r + 36q?

• 9(2r + 4q)
• 36q + 18r
• 6(6q + 3r)
• 18(r + 2)

Some students volunteer to plant trees in a new park.  They can plant 8 trees per hour. Which statement is FALSE?

• In 7 hours, the students plant 56 trees.
• The equation s=8h represents the relationship between s and h.
• The students need 3 hours to plant 24 trees.
• The students need 16 hours to plant 2 trees.

What is

8j + 1 - 4j + 6 simplified?

• 12j + 5

• 8j - 5

• 4j + 7

• 4j - 7

Write

4p + 10 + 6p - 7

in simplest form.

• 2p + 3

• 10p + 3

• 10p - 17

• 10p - 3

Which expression is equivalent to 6(5 - q)

• 30 - q
• 30 - 6q
• 30 + q
• 30 + 6q

Which expression is equivalent to

7(d + 2)

• 7d x 14

• 7 + 9d

• 7d + 14

• 7d + 2d

Which expression is equivalent to 4(6x - y)

• 24xy

• 10xy

• 24x + y

• 24x - y

Abby had 100 movies. Each week she would give 4 away to charities.
Which equation would describe the relationship between the number of movies Abby has and the number of weeks.

• y= 100 - 4x
• y= 4x + 100
• y= 4x - 100
• y= 100 + 4x

Emily had $50. Every week she babysits she gets $20.
Which equation describes the relationship between Emily's total money (s) and the number of weeks she babysits (w)

• s=50+200w
• s=200+50w
• s=20+50w
• s=50+20w

Lindsay had $40. She works at the grocery store and earns $15 each day.
Which equation shows the relationship between Lindsay's savings (y) and the number of days Lindsay works (x)

• y = 15x + 40
• x = 15y + 40
• y = 40x + 15
• y = 40 - 15x