I want to take my 5 friends to the movie theater. It costs $8.25 a ticket and I want to buy a pound of gummy bears to share with my friends. If I have $50, how much change should I get back?

Which of these choices show a pair of equivalent expressions?

What is the number 321,000,000 in scientific notation? also what is the number? ?

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