Armando flipped a coin 50 times and recorded how many times it landed on heads and tails. The results are shown in the table below:
Heads
30
Tails
20

What is the value of y? round to the nearest tenth

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.

Acylinder has volume 45π and radius 3. what is it’s height?