What is the solution (q, r) to this system of linear equations? 12q + 3r = 15 –4q – 4r = –44

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?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Acredit union pays 5% annual interest, compounded daily, on savings deposits. find the value after one year of $500 deposited in this account. $525.64 $25.64 $20.40 $520.40