I need help with this can I please get some help .

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

Franco wants to double the volume of the cone. what should he do?

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?