All local school purchases 100 rulers for $200. The school resells the rulers at school for $2.50. What is the percent markup?

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?

Aplane flies around trip to philadelphia it flies to philadelphia at 220 miles per hour and back home with a tailwind at 280 miles per hour if the total trip takes 6.5 hours how many miles does the plane fly round trip

Why did the ice arena get so hot after the big game (this is math related google it to find the paper