Prove that ΔABC ~ ΔDEF

Which of the following graphs represents the function f(x) = 2^x

1yd 1 ft = 1 1/12 1 1/3 1 1/2 1 1/6

If a sprinkler waters 1 over 12 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn? (5 points) 10 hours 6 hours 1 over 6 hour 7 over 12 hour