Answer:
Super super super super super SUPER late but,
Explanation:
If you look at the chart you can see 20 mins and then if you go to the point of 25 which would be between ( in the middle) of 20 and 30, then you would go up to the empty point that is followed up by the 20 and 30 and as you can see you get 380, so your first answer for number 1 would be 380 gallons
The second question um looking at the chart again if you would go to 35 then go up you can see 500 is how 35 Is your answer (about 35 mins)
The last one is 15 don't know how I got it but it's 15.
This is the chart that I use