3. jacob and sarah are saving money to go on a trip. they need at least $1975 in order to go. jacob mows lawns and sarah walks dogs to raise money. jacob charges $25 each time he mows a lawn and sarah charges $15 each time she walks a dog. the number of dog walks that sarah has scheduled is no more than four times the number of lawns jacob has scheduled to mow. sarah will walk at least 50 dogs.

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?