Lydia rides bike 3miles from her house to the store. then she rides her bike 7 miles from te store to her friends house. then she rides bike home. she doesn't knowhow far it is from friends house to her own house but she knows she biked 15 miles in all. how far is it from lydias friends house to her own house

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?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer