You are ordering t-shirts from online which cost $7.00 each. Your shipping cost is $4.50 and your purchase total is $25.50. Let t be the number of t-shirts ordered. Which equation models this situation?

4.5t +7=25.5

7t + 4.5 = 25.5

25.5 + 4.5 = 7t

7t - 4.5 = 25.5