Answer:
160 inches
Step-by-step explanation:
An octagon has 8 sides;
20*8=160
Answer:
2x + 3y = 6
Step-by-step explanation:
2x + 3y = 6
-2x. -2x
3y/3 = -2x + 6/3
Y = -2/3x + 2
You need to add the two quadratics together...
x^2+11x-6+6x^2-3x+9
7x^2+8x+3