Answer:
7)B
8) C
9) A
Step-by-step explanation:
C. 55
Since all angles in a triangle add up to 180°, we have:
40 + y + y + 30 = 180
2y + 70 = 180
2y = 110
y = 55
perp. -5
y + 7 = -5(x - 4)
y + 7 = -5x + 20
y = -5x + 13
The answer would be 46. Hope this helps!
Answer: 57.9 dollar
891.95 x 6.5%