Regina charges c dollars per hour to babysit. If she increases her rate by 15%, which expression represents her new rate, in dollars per hour?
A. C+0.15
B. C+15
C. C +0.15c
D. C +15c

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

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?