91Ó°ÊÓ

Use the distributive property to write an equivalent variable expression.

$ (  2u-7  )  u$

Perform the indicated operation. (Lessons 1.5–1.7)

$-19+40$

Write the product using an exponent. (Lesson 1.2)

$x×x×x$

Extended Problem Solving One type of fish eaten by swordfish is the mackerel. A swordfish can grow to a length of about 5 yards, while the length of an adult mackerel is about 18 inches.

$5  yards  =  5  yards  ·  \frac{?  feet}{1  yard}  ·  \frac{?  inches}{foot}$

1. Evaluate Use properties of multiplication to evaluate the product in part (a). What is the length of a swordfish in inches?
2. Compare A swordfish is how many times as long as a mackerel?

For the given expression, identify the terms, like terms, coefficients, and constant terms. Then simplify the expression. (Lesson 2.3)

$5x+11+8x$

Use the distributive property to write an equivalent variable expression. (Lesson 2.2)

$5\left(2q+11\right)$

Use the distributive property to write an equivalent variable expression.

$8(3t−7)$

Use the distributive property to write an equivalent variable expression.

$- 3 y (  y  +  8  )$

For the given expression, identify the terms, like terms, coefficients, and constant terms. Then simplify the expression.

$-3p+2+p-4$

Write the product using an exponent. (Lesson 1.2)

$t×t×t×t×t×t$