Answer:
Why the rest of the answers or bubbles are hidden???
Step-by-step explanation:
Answer:
D. 15 gal
Step-by-step explanation:
A typical size for a car's gas tank is about 15 gallons.
Answer:
w=-5
Step-by-step explanation:
3w=-18+3
3w=-15
w=-5
Answer:
.
Step-by-step explanation:
Let C represent total daily charges in dollars and t represent time in hours.
We have been given that a plumber charges $50 for a service call plus $80 per hour.
The amount charged for t hours would be
.
The total amount charged for t hours would be
.
We are also told that plumber spends no longer than 8 hours a day at any one site, this means that time t have a restriction as:

Therefore, our required cost function would be
.
9. negative 10. negative 11. negative 12.negative 13.negative 14. positive 15. positive 16. negative 17. negative 18. positive