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?
1 over 4 ⋅ 1 over 12 hours
1 over 12 ⋅ 4 hours
1 over 4 ⋅ 12 hours
12 ⋅ 4 hours
PLZ Help !!!!!!!!!!!!!!
Giving away all my points for this.(99)