At a camp, the campers need more than 15 gallons of fresh water every day. they already have a gallon of fresh water, and they can collect the additional water by making x trips to the nearby well. their situation can be represented with the inequality 2x + 1 > 15. what is the simplified form of this inequality?
a.) x > 7
b.) x > 8
c.) x > 15
d.) x > 16