1) The area of the pizza is 36πin. What is the radius of the pizza?

3.3851375012865377216884767093646, rounded to 2 sig figs, it would be 3.4 inches.

3.3851375012865377216884767093646

Step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.