Sally need a triangular piece of cardboard for her science project

Which equation represents the function on the graph?

What is r i 4.5+10r=-6.5 with work pls

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?