A commuter has 245 in his commuter savings account. This Account changes by 15 dollars each week he buys a ticket. If the account changed by 240 for how many weeks of tickets did the commuter buy. If the commuter wants to buy 20 weeks of tickets how much mus he add to his account

Answer 1

240/15 = 16 weeks

20 * 15 = ?

Answer 2

Thank you I didn’t understand any of it but thanks to your help I understand it more.