Answer:
Percentage of change - 15.4% (simplified)
Step-by-step explanation:
15.384%
Addison's speed was 65 miles per hour.
Since, 1,170 divided by 18 equals 65.
A+B+C = 90°
A ≤ B ≤ C
C = 3A
B = 2A
A+B+C = A + 2A + 3A = 6A = 90°
A = 15°
B = 2A = 30°
C = 3A = 45°