In how many different ways can the curator of a museum arrange five of eight paintings horizontally on the wall?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd