(8 × 2) × 5 = 8 × (2 × 5)

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

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.