11. ALGEBRA Mary Morgan has a credit card that uses the unpaid-balance method to compute the finance charge. Her monthly periodic rate is 1.8%. During the past billing cycle, her previous balance was $426 and she made purchases
totaling $100. If she had $48 in returns and her new balance was $383, what amount did she make in payments?
HELP!!!

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.