Chapter 3: Problem 28
Solve the equation. $$-4 n=-24$$
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Graph the numbers on a number line. Then write two inequalities that compare the two numbers. $$-0.2 \text { and }-0.21$$
In any triangle, the sum of the measures of the angles is \(180^{\circ}\). In triangle \(A B C, \angle A\) is four times as large as \(\angle B\). Angle \(C\) measures \(20^{\circ}\) less than \(\angle B\). Find the measure of each angle.
A store sells a box of 5 frozen yogurt bars for \(\$ 1.20 .\) The store also sells a box containing 7 of the same frozen yogurt bars for \(\$ 1.59 .\) Which is the better buy? Explain how you decided.
Simplify the expression. $$6\left(-\frac{1}{6} x\right)$$
In Citizen of the Galaxy by Robert Heinlein, Thorby learns that he owns “an interest in a company . . . through a chain of six companies—18% of 31% of 43% of 19% of 44% of 27%, a share so microscopic that he lost track.” Let x represent the total worth of the company in which Thorby owns a share. Suppose Thorby's share of the company is worth 1000 credits. Write and solve an equation to find the total worth of the company.
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