Which of the following number is 90
Divisible by? 2,3,4,5,6,9,10

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.

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.