use ratios in their simplest form to compare the salaries of Simon, Julie and John if Simon earns R4000 per month, Julie earns R6000 per month and John earns R3500 per month

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?