Last year, rachel opened an investment account with $8200. at the end of the year, the amount in the account had decreased by 7.5%. how much is this decrease in dollars? how much money was in her account at the end of last year? what was the decrease in the amount? what was the year-end amount?

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