Tony is riding in a bike-a-thon to raise money for her school. She will raise $7.00 for every mile she rides. The total amount of money Tony will raise in dollars is represented by t. The number of miles she rides is represented by n. Which equation expresses t in terms of n? Choose the correct answer from the following.
a) n = t + 7
b) t + 7n
c) n = 7t
d) t = n + 7