A pound of chocolate costs 7 dollars. Deshaun buys p pounds. Write an equation to represent the total cost c that Deshaun pays.
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Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.