Q3 CSA Review Algebra

Which expression is equivalent to 12n−15 ?

• -3(-4n-5)

• 20n −10−(8n -5)

• 14n−10+ 5

Which of the following are equivalent to 2m(m + 3)? Choose ALL that apply.

• 2(m² +3m)

• (m + 3)2m

• 2m + 6

• 6m + 2m²

• 2(m +3)

An accountant wrote this expression to determine the difference between the value in dollars of two investments.

100(2−n)−25(2+n)

Which of these is an equivalent expression for the difference in the values?

• 250-125n

• 250-75n

• 150-75n

• 150-125n

• 3x+28

• x+4

Jake walked all the way around the perimeter of a square playground that has sides n feet long, then he walked an additional 40 feet.

Which person walked the same distance as Jake?

• Sarah, who walked a straight distance of n+20 feet.

• Nancy, who walked around a square garden measuring n+10 feet on each side.

• Jules, who walked around a rectangular room measuring n feet wide and 20 feet long.

• Billy, who walked around a square lot measuring 40 feet on each side

Which expression is equivalent to the expression below?

(4b + 6) + 8(2 –b)

• b+20

• -4b+22

• 12b+22

• 4b+16

Marco bought a new building for his company which is one tenth bigger than his current building. If his old building has m square feet, which expression represents how many more square feet the new building has?

• 10m

• 10+m

• 0.10+m

• 0.10m

Jackson is given the expression below to simplify.

18x – 8 + 8x + 10x + 19

Which expression is equivalent to Jackson's expression?

• 36x+11

• 28x+19

• 36x+27

• 20x+11

Which student wrote an INCORRECT expression.

• Amy

• Kayne

• Lawrence

• Sufjan

Which of the following is equivalent to this expression?

10x+4(2−x)

• 16+x

• 6x+8

• 14x+8

• 11x+6