Help fast <3 i have a full test, 3 questions 1. An oil company fills 1 over 12 of a tank in 1 over 4 hour with gasoline. At this rate, which expression can be used to determine how long will it take for the tank to fill completely?

a 1 over 4 ⋅ 1 over 12 hours
b 1 over 12 ⋅ 4 hours
c 1 over 4 ⋅ 12 hours
d 12 ⋅ 4 hours

2. If a sprinkler waters 1 over 12 of a lawn in 1 over 4 hour, how much time will it take to water the entire lawn?

a 1 over 6 hour
b 1 over 3 hour
c 2 hours
d 3 hours

If 3 over 4 ton of pebbles covers 4 over 5 of a garden, how many tons of pebbles are required to cover the entire garden?

a 3 over 5 ton
b 15 over 16 ton
c 1 and 1 over 3 tons
d 1 and 11 over 20 tons