Jeff is 18 years older than joe, and jeff is also 2 1/2 times as old as joe. how old is joe?

Rewrite the following without an exponent. (5/8)-1

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.

Secant be and cf intersect at point d inside a what is the measure of cde