Find the length of the arc intercepted by a central angle calculator in pi

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height