Find $-x$ when $x$ is $-10$.

Write exponential notation. \

$$2 \cdot n \cdot n \cdot n \cdot n$$

Use the commutative law of multiplication to write an expression equivalent to $3t+5$.

Evaluate.
$\frac{x+y}{4}$, for $x=2$ and $y=14$

Use the commutative law of multiplication to write an equivalent expression. \

$$7x$$

Add using the number line. \

$$-3+(-5)$$

Graph $-2.5$ on the number line.

Perform the indicated operation and, if possible, simplify. \

$$\frac{8}{15} \div \frac{6}{11}$$

The following table lists the number of calories that Kim burns when bowling for various lengths of time. Find an equation for the number of calories burned $c$ when Kim bowls for $t$ hours.

Multiply. \

$$-5 \cdot 6$$

Evaluate.
$\frac{c+d}{3}$, for $c=14$ and $d=13$

Use the commutative law of addition to write an equivalent expression. \

$$9(x+5)$$

Find the reciprocal of $-\frac{4}{7}$.

State which real numbers correspond to each situation.
Mina deposited $\$ 650$ in a savings account. Two weeks later, she withdrew $\$ 180$.