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

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: