Although in terms of human time the 1976 Big Thompson flood was a rare event, such floods are common over geologic time. Since these floods may occur at any time, what steps could be taken that would help minimize the loss of life and property along the river

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

the answer to this is a. a^2 + b^2 = c^2