0. Review of College Algebra

Evaluate each expression. See Example 5.-|4.5|

CONCEPT PREVIEW Fill in the blank(s) to correctly complete each sentence.The numerical coefficient in the term -7yz²is ___________.

CONCEPT PREVIEW Evaluate each expression.10³

CONCEPT PREVIEW Evaluate each expression.2 • 5 - 10 ÷ 2

CONCEPT PREVIEW Evaluate each expression.3a - 2b, for a = -2 and b = -1

CONCEPT PREVIEW Rewrite the expression -7(x - 4y)using the distributive property.

Find each sum or difference. See Example 1.-6 + (-13)

Find each sum or difference. See Example 1.-15 + 6

Find each sum or difference. See Example 1.13 + (-4)

Find each sum or difference. See Example 1.-7⁄3 + 3⁄4

Find each sum or difference. See Example 1.-2.8 + 4.5

Find each sum or difference. See Example 1.4 - 9

Find each sum or difference. See Example 1.-6 - 5

Find each sum or difference. See Example 1.8 - (-13)

Find each sum or difference. See Example 1.-12.31 - (-2.13)