Expand and simplify the expression
(p-4q) (3p+q) - (2p+3q) (4p-7q)

For the inequality |c| < |d| to be true, which of the following must be true?

What is the value of x in the equation7x+2y=48 when y=3

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.