45% of the inhabitants of the town of prevert belong to the blood group O
how many people with blood group O should we expect to find if we randomly choose 1200 inhabitants?
A. 45
B.540
C.660
D.27

give more details

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

55 because 55 + 55 = 110 good luck babe