91Ó°ÊÓ

$figach$$a{a}^{aa{a}_{xxx}}$

Write an equation whose solution is $-7$.

Explain why the absolute value of a number is always nonnegative, $\left|a\right|$can equal $-a$.

Find the value of each expression.

$18-12÷3$

Describe how will you evaluate the expression$a+b\left[\left(c+d\right)÷e\right]$ given values for$a,b,c,d,$ and $e$

OPEN ENDED

Give an example of each type of number.

1. Natural
2. Whole
3. Integer
4. Rational
5. Irrational
6. Real

Choose the term that best completes each sentence.

Write an equation whose solution is $-7$.

Explain why it is not necessary to state a division property for inequalities.

1. Solve $2\text{d}+5=8\text{d}+2$. Check the solution.