During halftime at the Cavs game, a slingshot launches T-shirts at the
crowd. A t-shirt is launched with an initial upward velocity of 72 ft/s.
The T-shirt is caught 37 ft above the court. The function
y = -16x^2 + 72x + 5 gives the T-shirt's height y, in feet,
after x seconds
What is the starting height of the t-shirt?