A) -13
Bcz
x^2-13x+12=0
x^2-x-12x+12=0
x(x-1)-12(x-1)=0
(x-1)(x-12)=0
Answer:
611.08
Be sure to treat the two shapes as completely different figures, then add their totals together
o 1-12 - (-15) = -3 is the right answer