500 = 200 + 20h is our equation. Subtract 200 from both sides 300 = 20h Divide by 20 300/20 = 15. It will take 15 hours to get 500 points. Hope this helps!
I did these about 1 year ago but i think you subtract the 6 from 30 and then divide by 4, and that gives u 24/4 which is 6. i barely barely remember some so