Which sum or difference is modeled by the algebra tiles? -X²
-X²
OA. (x²+2x+3)(x²-2x-1)=-2x²+2
B. (x2 + 2x + 3) - (-x2 + 2x + 1) = -2x + 2
oc. (x²+2x+3)+(-x²+2x+1)= -2x + 2
OD. (x + 2x + 3) + (-X 2x-1)=2x²+2

(see picture)

answer: okw

step-by-step explanation:

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: