1. Change x = 4t into x = 3t

so

Answer A and D are wrong.
2. Change x = 4t into x = 2t

and

Answer b is correct.
3. Change x = 4t into x = 8t

and

Answer C. is correct, E. is wrong.
Answer:
(X<-25) or -oo, -25
Step-by-step explanation:
because max is -25
(3/4)/3
3/12
1/4
So he spent a 1/4 hour milking each group.
Answer: D
154 miles.
Step-by-step explanation:
Half way is 440/2 = 220. Subtract the 66 miles already traveled, and they have 154 miles to go.