Question

Suppose that Saleem has money in a savings account that pays him interest of5% per year on the account balance. Now, Saleem takes out $50 a month for various frivolities, and his mother secretly deposits $240 every 6 months into his savings account. Assuming that interest is paid and money is deposited and withdrawn from the account in a continuous fashion, the balance B = B(t) (in dollars) remaining in Saleem's savings account at time t (in months) is best modeled by the differential equation: (see attachment)

Answer 1

The answer is B. :)

Answer 2

its a