A map of a town with an area of 3.5 square inches . If the map has a scale of 1 inch : 4 miles, what is the actual area of the town

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.

Solve this problem! extra ! 3025/5.5 = a/90.75

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4