USPS charges a flate rate of $5.50 for the 1st pound of shipping, plus $1.35 for each additional pound. FedEx charges $8.00 for the 1st pound of shipping and $1.10 for each additional pound. How many pounds will it take for USPS and FedEx to cost the same?

Find the difference (8ab+a+2) - (3ab+6)

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

With finding limits of multi variable !