Find the matrix product, if possible.
A. 
B. 
C. 
D. 
Answer: C
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Solve using a system of three linear equations.Ron attends a cocktail party (with his graphing calculator in his pocket). He wants to limit his food intake to 143 g protein, 130 g fat, and 162 g carbohydrate. According to the health conscious hostess, the marinated mushroom caps have 3 g protein, 5 g fat, and 9 g carbohydrate; the spicy meatballs have 14 g protein, 7 g fat, and 15 g carbohydrate; and the deviled eggs have 13 g protein, 15 g fat, and 6 g carbohydrate. How many of each snack can he eat to obtain his goal?
A. 5 mushrooms, 4 meatballs, 7 eggs B. 4 mushrooms, 7 meatballs, 5 eggs C. 7 mushrooms, 5 meatballs, 4 eggs D. 8 mushrooms, 6 meatballs, 5 eggs
Multiply the rational expressions. Simplify, if necessary.
? 
A. 
B. 
C. 
D. 
Find the missing quantities by first computing the markup on one base and then computing the markup on the other. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.
A. Markup = $4.96 % Markup on cost = 15.0% % Markup on selling price = 87.0% B. Markup = $9.92 % Markup on cost = 13.0% % Markup on selling price = 66.9% C. Markup = $9.92 % Markup on cost = 13.0% % Markup on selling price = 15.0% D. Markup = $4.96 % Markup on cost = 15.0% % Markup on selling price = 13.0%
Solve. Remember to insert units when writing your answer.The total pages of a hardbound book are 3.3 cm thick. The front and back covers are each 
thick. How high would a stack of 7 of these books be?
A. 25.76 cm B. 3.68 cm C. 49.7 cm D. 24.43 cm