Y= 18 gallons-2(h)
y is what you're trying to find out and since there are 18 gallons in the tank after every hour you would have 2 less gallons. So, you can multiply how many hours he's been driving by the 2 gallons and subtract it from 18
Answer:
YAY!
Step-by-step explanation:
POINTZ!
For this case we have the following functions:

We must find
. By definition of compound functions we have to:

So:
Taking into account that:

Different signs are subtracted and the major sign is placed.

Finally we have to:

Answer:

C. ΔKPT ≈ ΔKRT
It's identical on both sides.
You have to add the $51 to $13 and find the answer then divide the sum by $28,500