Answer:60
Step-by-step explanation: it needs to add up to 180
Answer:
5
Step-by-step explanation:
B and D are congruent. Set them equal to each other.
15x + 5 = 16x - 2
x = 7
Plug into B.
15(7) + 5 = 110
180 - 110 = 70
12y + 10 = 70
12y = 60
60 / 12 = 5 = y
Factor 3x^2 - 12x + 3
3x^2 - 12x + 3
answer is 3(x^2 - 4x + 1)