Show Intro/Instruction The amount of money, A(t) , in a savings account that pays 5% interest, compounded quarterly for t years, when an initial investment of $4600 is made, is given by A(t) = 4600(1.0125)". A(7) - A(2) Find 37.04 Preview 7 - 2 Interpret the result 7 Hint: Think of 2 and 7 as years If the formula was just A(7) - A(2) that would be the total change. In this case, we divide that by 7 - 2. What is the meaning of that?What does A(t) represent? Get help: Video