Unit 8 Study Quiz

Simplify the expression below using like terms. 

4x+12+4x+10

• 8x+12+10

• 22+8x

• 16x+22

• 40x

• I. only

• II. only

• III. only

• Both I. & II.

Match the following

• the sum of 3 and n

• 3-n

• the difference of 3 and n

• 3n

• the product of n and 3

• the quotient of n and 3

• 3+n

Evaluate 2z + 6 when z=3

• 3

• 6

• 8

• 12

Which expression is equivalent to 6x-2y+x+x?

• 3x

• 6x

• 4x-2y

• 8x-2y

The counter servers at Pop Brothers earn $7 per hour.  If p is the amount of earnings and h is number of hours worked, which equation can be used to calculate the earnings for 1 server?

• ph=7

• h=7p

• p=7h

• p=h+7

Which choice is equivalent to the expression 3(x+3y)?

• 3x+9y

• 3x+3y

• x+9y

• 9xy

Which of the following expressions is equivalent to the expression t+t+t+t?

• 4+t

• 4t

Sally rents a life jacket for a one-time fee of $4. She then rents a canoe for $12 per hour. Which expression represents the total cost, in dollars, to rent the life jacket and the canoe for h hours? 

• 4+12h

• 10h

• 12+4h

• 16h

Simplify the following by combing like terms.

2m+3n-5n

• 5m-5n

• 2m-2n

• 2n-2m

• 2m+3n-5n