By finding like denominators, you can add the fractions on each side. Then, compare by cross multiplying.
The answer for C is 35 as output. The answer for D is 6 as input. Hope it help!
Answer:
W = (1/7) t
Step-by-step explanation:
At t = 0, W = 0
At t = 56 minutes , W = 8 inches
W = k*t The y intercept = 0 because t = 0 W = 0
8 inches = k * 56 minutes
k = 8 / 56
k = 1/7 inches / minute
W = (1/7) t