A plane can fly 420 miles in the same time as it takes a car to go 90 miles

150.6

all i did was i multiplied 5.02 by 30

look at photo

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb