A real estate agent agrees to sell an apartment complex according to the following commission schedule: $45,000 plus 15% of the selling price in excess of $700,000. Assuming that the complex will sell at some price between $700,000 and $1,300,000 inclusive, over what range does the agent's commission vary? How does the commission vary as a percent of selling price?

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?