There are 108 ducks at the zoo. If 75% are brown, how many brown ducks are at the zoo?

Which expression is equivalent to 2x^2+7x+4?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

We just started the introduction into circles and i have no idea how to do this.