You can model an arch at your school using the equation y = -0.5(x + 4)(x - 4), where x and y are measured in feet. The x-axis represents the ground. Find the width of the arch at ground level.
The width of the arch at ground level is
feet

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.