Answer:
80+50P
Step-by-step explanation:
80 is fixed
50 is variable
1 device = 130
2 decices = 180
10000 = 10km
10 / 2.5 = 4 hours
I believe it would be D
(A) 2/12 or 1/6. (B) 2/12 or 1/6 (C) 4/12 or 1/3.
