An urn contains 5 green balls, 8 red balls and 7 blue balls. Event A is defined as drawing a red ball on the first draw, and event B is defined as drawing a red ball on the second draw. If two balls are drawn from the urn, one after the other and not replaced, what is P(B|A) expressed in simplest form?

Volume of a cylinder with a radius of 13 in and height of 30 in

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.

What does x = in this equation x+3+2x=x+5