What is barbara has had a checking account for four months. the number of barbara's debit card transactions appear in the table below. how much has barbara paid for her account in four months?

Fill in the missing exponents in each box and show how you found the answer. (4 points: 2 points for each correct answer with work shown) c. (9^4)^? =9^1 d.(5^? )^3=5^1 *question marks represent the boxes