How much does cost to rent a canoe for 4 hours???

Which of the following are accepted without proof in a logical system? check all that apply.

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two