Answer:
1 gallon every 16 minutes
Step-by-step explanation:
If after 32 minutes the container has 6 gallons left that means it has lost 2 gallons of water. So we now divide the 32 minutes by the 2 gallons of water to get that 1 gallon of water leaks every 16 minutes.
the answer would be the first one 321 m^2
m=2(wl+hl+hw)=2·(10·6+6·6+6·10)=312