What is the direct variation equation if y varies directly with x and y = –6 when x = –36?
a.
y = -6x
b.
y = 1/6x
c.
y = 6x
d.
y = -1/6x

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.

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect