If the leaning tower of pisa has a height of 55 meters, radius of 8 meters, what is the volume?
a) 64π
b) 440π
c) 3520π
d) 28160π

If f(x)= 3x+6 which of the following is the inverse of f(x)

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.