If a gas tank can hold 30 gallons, how many gallons does it contain when it is three-fifths full?

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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?

W-16=-12 solve each one step equation plz