David has scores of 95, 54, 98, 81 on his algebra tests. use an inequality to find the minimum score he can make on the final exam to pass the course with an average of 64 or higher, given that the final exam counts as 2 tests.

Why do interests rates on loans to be lower in a weak economy than in a strong one

What properties allow transformation to be used as a problem solving tool

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?