6g 300mg-5g 200mg is equal to?

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.

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal