10.23 Quiz

Choose ALL of the following expressions that represent

 $y-8$  .

• y minus eight.

• y fewer than eight.

• eight less than  y.

• y subtracted from 8.

• 8 subtracted from y.

Which expression is represented by "twelve increased by a number x"?

• 12 + x

• 12 - x

• 12 • x

• 12 ÷ x

Which expression is represented by "eight times the sum of n and 5"?

• 8 • n + 5

• 8 • (n + 5)

• 8 + n + 5

• 8 • (n • 5)

Evaluate

 $x^2-5$  
for x = 6.

Evaluate

 $\frac{15}{b}+4a$  
for a = -3 and b = 5.