What does the 9 stand for in 4.59

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

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?