Answer:
I don't understand this
I believe its 57.
Step-by-step explanation:
180-66=57.
57+57+66=180
-6 gal/min
(-4 1/2 gal)/(3/4 min) =
= (-4.5 gal)/(0.75)
= -6 gal/min
Answer: -6 gal/min
its the first one and its 3.24