Alison is selling and buying baseball cards online. she sells each card for $3.25 and buys each card for $5.50. if she sold 4 cards and bought 7 cards, did she end up making money or spending money and how much money did she spend or make

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?