Answer:
a
Step-by-step explanation:
Don't let fractions fool you.

of a tank in

an hour is equal to:
1/12 of a tank in 20 minutes.
Thus we know in an hour, an oil company can fill 3/12 of a tank (60 minutes in an hour).
3 x 4 = 12, and 12/12 = 1(a whole tank), so we multiply 1 (hour) by 4.
Our answer is that it takes 4 hours to fill a tank.
Answer:
(-6,-4)
Step-by-step explanation:
Hope this helps! (:
Step-by-step explanation:
I got this much.....
I am sorry of it gets wrong