Answer:
D = (55)(4.5)
425 = 60 T
200 = R (2.5)
4.6 hours
59 mph
217 miles
Step-by-step explanation:
180 + 9 - 4 = 185
5x = 185
185/5= 37
A = 37 X 2 - 9 = 65
B = 37 X 2 + 4 = 78
C = 37
A + B + C = 180
65 + 78 + 37 = 180
A = 65 degrees
B = 78 degrees