What is the GCF of two numbers or expressions that have no prime factors in common. Explain.
Ryan has 10 quarters. Kelly has exactly seven times as much money as Ryan. They will combine their money to buy a game. The game costs $27. How much more money do they need to save?
Sam wants to buy a remote control dune buggy that is 30% off. The original price is $200.11. What is amount of discount(nearest penny)?