Chapter 2: Problem 53
SIMPLIFYING EXPRESSIONS Simplify the expression by combining like terms. $$ -3+y+7 $$
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SIMPLIFYING EXPRESSIONS Simplify the expression by combining like terms. $$ 8 b+5-3 b $$
DISTRIBUTIVE PROPERTY Use the distributive property to rewrite the expression without parentheses. $$ -9(a+6) $$
LEAVING A TIP In Exercises \(83-85\), use the following information. You and a friend decide to leave a \(15 \%\) tip for restaurant service. You compute the tip, \(T,\) as \(T=0.15 C,\) where \(C\) represents the cost of the meal. Your friend claims that an easier way to mentally compute the tip is to calculate \(10 \%\) of the cost of the meal plus one half of \(10 \%\) of the cost of the meal. Write an equation that represents your friend's method of computing the tip.
COMBINING LIKE TERMS Apply the distributive property. Then simplify by combining like terms. $$ 3 t(t-5)+6 t^{2} $$
EXPRESSIONS WITH FRACTION BARS Evaluate the expression. $$ \frac{6^{2}-12}{3^{2}+15} $$
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