Find the slope of the line that would pass through the points (3, 8) and (4,12).

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.