BONUS: At the end of the harvest season, Omar wonders if it is time to cover the garden with a tarp. He understands that as the temperature decreases, moisture in the air condenses into dew which freeze at 0°C and may damage the plants in the garden. At 4:00 P. M., the temperature is 5°C. The temperature is predicted to decrease 0.5°C every two hours until 4:00 A. M. Does Omar need to cover the garden? Show your work