Warm Up 9/28,29 (Review Section 1.7/1.1, 1.8)

Simplify

 $-9m^2n+5mn\ +2mn\ +\ 10m^2n\ +\ 9$  

•  $1m^2n+7mn\ +\ 9$  

•  $1m^4n^2+7m^2n^2+\ 9$  

•  $-90m^2n+10mn\ +\ 9$  

• none of the answers listed 

Tags

CCSS.7.EE.A.1

Simplify

 $9(5+t)-7(t+3)$  

• 16t + 45

• 2t - 21

• 2t + 24

• none of the answers listed 

Tags

CCSS.6.EE.A.3

Write a rule as an algebraic expression to model the relationship. While on vacation you rent a bicycle. You pay $9 for each hour you use it. It costs $5 to rent a helmet while you use the bicycle.

• 9b + 5h where b is the number of hours you rent the bike for.

• 9b + 5 where b is the number of hours you rent the bike for.

• 9 + 5b where b is the number of hours you rent the bike for.

• none of the answers listed

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Is 3 a solution to 8x + 5 = 29? From section 1.8

• no

• yes

• maybe

• sometimes

Tags

CCSS.6.EE.B.5

Write an equation for each sentence: The sum of 5 and the number x is 85. (Section 1.8)

• 5 + x

• 85 + x = 5

• 5 + x = 85

• none of the answers listed