Because the 7.5% of 4356 is 326.7 and you pay interest every year, and in the question it is asking for your balance in 5years so you multiply 326.7 by 5 and you get 1633.5 then you add that to the savings account and you get 5989.50, the equation is y=4356+326.7x
When you round to the hundred, you look at the 10s place. If the 10s place is 5,6,7,8, or 9, you round the hundred up. In this case, it is 459 so you would round up to 500. Have a nice day!!!
