Answer:
II, I, III
Step-by-step explanation:
To find the least common difference, you just need to subtract one number in the sequence by the previous number (see how much is between each number in the sequence) For II, the GCD is 3, for I, it is 4, and for III, it is 7.
It is empty a gallon every two and a half minutes so 2 1/2x x=gallons of water
it will take 12 1/2 minutes to completely empty since it takes 2 1/2 minutes per gallon.
the tank was full 7 1/2 minutes before Jada arrived. 10-7= 3 so it emptied 3 gallons before Jada arrived. It takes 2 1/2 mins for a gallon to empty so 2 1/2 times 3 equals 7 1/2 mins
-26
the formula is -2-4(n-1)=2-4n
so the seventh term is 2-4*7=2-28=-26