Determine whether the statement is true or false.

$$(-2)(-3)(0)=\frac{-4}{0}$$

Use the choices below to fill in each blank. Not all choices will be used.

$$\begin{array}{llll}\text { whole numbers } & \text { integers } & \text { rational number } & a \\ \text { natural numbers } & \text { value } & \text { irrational number } & -a \\ \text { absolute value } & \text { expression } & \text { variables } & \end{array}$$

$A(n)$ __________ is formed by number and variables connected by operations such a addition, subtraction, multiplication, division, raising to powers, and/or taking roots.

*Use the choices below to fill in the blank. Some choices may be used more than once and some used not at all.

$$\begin{array}{cccccc}\text { exponent } & \text { undefined } & \text { base } & 1 & \frac{-a}{-b} & \frac{a}{b} \\ \text { square root } & \text { reciprocal } & 0 & 9 & \frac{-a}{b} & \frac{a}{-b}\end{array}$$

The fraction $-\frac{a}{b}=$ __________ $=$ __________