First draw a rectangle. Label the longer sides as 20 feet long each. 20 + 20 = 40. that means there is 16 feet of fencing left for the shorter sides. This means that each of the shorter sides is 8 feet long <span />
It will take one person for the venues to equal the same amount. This is simply done by multiplying 1 x the per person amount then adding it to the reservation cost.