(x -1)(x +4) = 0
x² +3x -4 = 0 . . . . . . probably the form you're looking for
Answer:
Is there more information? I need like the height and stuff
Your answer would be approximately 254.5 if you round since 9^2 times pie you would get such
Step-by-step explanation:
to calculate circumference:

if the diameter is 16 then the radius would be 8.

to calculate the area of a circle:

The time that each car traveled.