Arecipe for cookies calls for 1 cup of butter, twice as much sugar as butter, and three times as much flour as sugar. how many cups of flour will you need if you halve the recipe? (hint: halving an amount is the same as dividing the amount by 2)

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.