Answer:
The first option is the correct answer
Step-by-step explanation:
Answer:
88 hours on dump truck
24 hours on fire engine
Minimum cost is $3480
Step-by-step explanation:
D > 0; f >0
Plant A : 10d+5f >100
Plant B: 5d +15f >800
Cost:
C(x,y)+30D+35F
Answer:
3x>12 2x/3 ≤ 6
3x>12, x = 4 2x/3, x = 2 ≤ 6
Let

represent Jose's drived distance and

represent Rob's.
So what you need to do is to solve the equation:



So Jose drove for
6 hours before Rob caught him.