You are constructing a concrete landing pad for a helicopter. You have 4704 cubic feet of concrete If the landing pad is a square that is 56 feet on each side, how thick will the pad be

The pad will be feet thick

If you want to use the concrete to build a circular landing pad with the same thickness as the square landing pad, what would the diameter of that landing pad be?

The diameter will be feet
(Use 3.14 for pi Round the answer to the nearest hundredth)

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.