Monique swims 40 laps in 20 minutes. Which ratio shows the number of laps per minute she can swim?

In the diagram below what is the approximate length of the minor arc ab

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.

What is the result of the following division?