Evaluate the given expression
8•(5+4)-6•9+7

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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?