What is the estimate of 2000x200

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

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