Answer:
10 blocks.
Step-by-step explanation:
That is 7 + 3 = 10.
its (a) because (a) is C(x)=3x4+30x and 9+21 is 30 so its 3x2+30
22x+138
just add 11x+11x+9+9+60+60
1 and 3
They are across from each other making them vertical angles.
8) - 8z^3 - 3z^2 - 2z + 13
9) g^3 - 3g^2 + 3g + 6
10) (14n + 21) - (8n + 7) = 6n + 14