Molly wants to buy a raincoat for her pet. If the raincoat cost $39.99 and has a sales tax rate of 7%. What will be the final price (with tax) of the raincoat?

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?

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read