Okay so i know the scale factor but what would the point of dialation be? would it be b because that stayed the same or would it be c because i got the scale factor using it.

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

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?