Arecipe for cookies calls for 2⁄3 of a cup of chocolate chips and 4 cups of flour. if you want to make a bigger batch, using 6 cups of flour, how many cups of chocolate chips will you need?

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.