A bag contains 7 orange marbles and 14 yellow marbles . If a representative sample contains 2 orange marbles then how much yellow marbles would you expect it to contain? explain.

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?