He started out with 19.1 gallons because if you add 5.8 and 12.4 you get 19.1
<u>Answer:</u>
<u>Step-by-step explanation:</u>
<u>To subtract fractions, we must check if the denominators of both fractions are the same.</u>
- 2/5 - 1/7
- => 2 x 7/5 x 7 - 1 x 5/7 x 5
- => 14/35 - 5/35
<u>Now, let's subtract for the result.</u>
Hence, <u>Option B is correct.</u>
Hoped this helped.

Not enough information to answer; Only 2 angles are given, no other information is provided. So no information can be drawn from the problem, therefore the answer is A, not enough information.
False
X is the output, and y is the input