carol earns an additional 11.25 as commission for every music system she sells at her store. if she sells a total of 3 music systems on a certain day and earned 116.40 in salary how much did carol earn including commissions.

The unpaid balance on a mastercard charge was $1,056.23. during the month, payments of $300 and $250 were made and charges of $425 and $274.16 were added. if the finance charge is 1.2% per month on the unpaid balance, find the new balance at the end of the month. $1,205.39 $1,218.06 $918.06 $1,768.06