Shown below is the graph of the flow ratef(t) of a pipe, in gallons per minute. Here, t= the nu,ber of minutes.

7 Using this information, find f(t) dt , which gives the total number of gallons of water that flowed through this pipe in 7 minutes. A 3 2 Velocity (Gallons/Minute) 2 3 4 5 7 =1 Time (In Minutes)O f(t) dt = 17 gallons O f(t) dt = 16 gallons 0 f(t) dt = 18 gallons 0 O f(t) dt = 15 gallons