Someone please help this is my last question and I’m already fail so please give right answer if you can :)

x=20

Step-by-step explanation:

the following angles are supplementary so they will add up to equal 180

4x+21 +2x +39=180

step 1 combine like terms

6x+60=180

step 2 subtract 60 from each side

6x=120

step 3 divide each side by 6

x=20

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing

step-by-step explanation: