Okay so John needs to buy 7.6 quarts of paint so he would spend 26.55 on paint.
Hope this helps:)
First step, divide 6 from both sides.
t/6=r^2+1
second step, subtract 1 from both sides
t/6 -1=r^2
Now take the square root of each side.
Done!
Answer:4
Step-by-step explanation: