Which of the following are equivalent to 9h+9(2h)? h(9+18) or 9h+17h

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?

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!