Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 if the avergage wateris used 450 gallons a day

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.