A salesperson works 40 hours per week at a job where she has two options for being paid. Option A is an hourly wage of $21. Option B is a commission rate of 5% on weekly sales. How much does she need to sell this week to earn the same amount with the two options?

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Multiply. write your answer in simplest form. 3/8 x 5/7

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer