Is the percent increase from 50 to 70 equal to the percent decrease from 70 to 50? Explain.

The sum of two numbers is 86, and their difference is 20. find the two numbers

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?

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?