Abarrel holds 50 l, how many gallons is this?

Evaluate-27 ^4/3/8 a) - 81/16 b) 81/16 c) 16/81

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

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.