Gymnast clothing manufactures expensive soccer cleats for sale to college bookstores in runs of up to 500. it's cost (in dollars) for a run of x pairs of cleats is c(x)=3100+7x+0.1x^2 (0≤x≤500)

Solve: 3x+y=6 4x-2y=18 show all work !

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

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?