Answer:
Im guessing your asking how many weeks he needs to work, he needs to work 20.2 weeks to get enough for the car. You can easily make a equation with this answer comment on this if you want me to make the equation for you
Step-by-step explanation:
The diameter is 12 because the squares side is 12.the circumstance is diameter *pi 12*3.14=37.68
It would be: 39/40 * 100 = 3900/40 = 97.5%
