Which angle measure is a complement of an angle whose measure is 62 degrees? A 96
B 118
C 16
D 28

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Simplify the imporper fraction 31/2

When a number is decreased by 9.9% the result is 40. what is the original number to the nearest tenth? super urgent