Ms. gibson made an initial deposit of 500 dollars when opening a bank account after the initial deposit she deposited the same amount of money each month . the table below shows the the total amount of money a desposited into the account after. a certain number of months t since opening it which equation models the relationship between a and t ?

a) a=250t.

b) a=500t

c) a= 250t+500

d) a=500t+250