Hurry will give brainlist and 20 pts when megan solved this system using the elimination method, she added the equations together and got the equation 4y = 16. then she solved that equation and got y = 4. then she substituted 4 in the first equation for y and solved for x. she got x = 4. the point (4, 4) is not the correct solution. state in a complete sentence where she made her first mistake. what is the correct solution to the system? show your work in the space provided. 2x + 3y = 20 -2x + y = 4

(hurry! ) which expression is equivalent to the following complex fraction?

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?

This is about circle theorems. someone asap : (