Akayaker travels x miles per hour down stream for three hours. on the for our return trip, the kayak or travels 1 mph slower. how far did the kayak or travel in total?

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?

Interpret the following expression (5y^2-7)^3/(2y)^2

In stepmber, daniel and justin opened a business. during their first three months of business, their average monthly profit was $51. if during their first month, they lost $29, and during their second month, they gained $115, what was their profit or loss for their third plzzz i will give you 299 points