91Ó°ÊÓ

Explain why multiplying both sides of an inequality by a negative constant reverses the direction of the inequality.

Explain the use of parentheses and brackets in the graphing of the solution of an inequality.

Integers Seven less than 5 times a number is \(23 .\) Find the number.

Solve each application involving markdown or markup. A sport jacket that sells for \(\$ 175\) has a markup of \(\$ 85 .\) Find the wholesale price.

Use the formula \(r b=a\) or \(a=r b\) to find each value. What number is \(25 \%\) of \(300 ?\)

Use the formula \(r b=a\) or \(a=r b\) to find each value. \(35 \%\) of what number is \(182 ?\)

Solve each equation and round the result to the nearest tenth. $$\frac{3.7(2.3 x-2.7)}{1.5}=5.2(x-1.2)$$

Solve each equation. Be sure to check each answer. $$-43+a=-43$$

Find each value. 0.48 is what percent of \(8 ?\)

Solve each application involving percents. Selling microwave ovens The \(5 \%\) sales tax on a microwave oven amounts to \(\$ 13.50 .\) What is the microwave's selling price?