90 people attended the movies yesterday. 87 people attended the movies today. Is this an increase or decrease? What was the percent change?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Which number produces an irrational number multiplied by 1/3

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?