If Ricky does a job in 21 hours less time than Valerie, and they can do the job together in 10 hours, how long will it take each to do the job alone?​

In trapezoid klmn, kj=19.2 and jm=22.5. identify ln.

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?