The answer is 280 times, because 50 x 10 = 500, and the coin is fair, so you have to do 28 x 10, which equals 280. So the answer is 280 times. :D Glad I could help!
Answer:
12
Step-by-step explanation:
Hope this helps :D
Answer:
n=45
Step-by-step explanation:

Check the picture below. Bearing in mind that x = -2 is a vertical line.