John made $20 for 2 hours of work. sally made $50 for 4 hours of work. how do john and sally's hourly pay rate compare?

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.

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq