Matthew worked 40 hours every week for 8 weeks in a row, earning

a total of $2,880 over the 8-week

period. In this scenario, what is the

constant of proportionality?

A 5

B 9

C 72

D 320

i need more details sorry

step-by-step explanation:

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