91Ó°ÊÓ

Evaluate the expression when $p=12  \text{and}  q=15$.

6. $q+2$

Find the product or quotient.

0 ÷ (– 25)

Find the difference.

$-5-\left(-1\right)$

Evaluate the experssion when $x=4$

localid="1647946848154" $\frac{32}{x}$

State the absolute value of the number.
$15$

Writing Absolute value can be defined as follows: $\left|a\right|=a\text{if}aâ‰\yen 0,\text{and}\left|a\right|=-a\text{if}a<0$. Explain why this definition agrees with the one given at the top of page 23.

Find the sum or difference. (p. 749)

$9.9-5.4$

Evaluate the expression when $x=6\text{and}y=12$.

localid="1648828247026" $x+\frac{y}{3}$

Challenge: Find values of a and b for which the statement is true.

|a + b| = |a| + |b|

Use the coordinate plane shown in the example. Give the coordinates of the point.

60.