The sector of a circle with a 60-millimeter radius has a central angle measure of 30° . what is the exact area of the sector in terms of π ? enter your answer in the box.

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.