Mila wants to buy tickets for a concert. She has earned $135 and each ticket costs $50. She borrows the rest of the money she needs from a bank and buys the tickets.
1. How can you represent the amount of money that Mila has after buying the tickets?
2. How much more money will Mila need to earn to pay back the money she borrowed from the bank?
3. How much money will she have after she pays back the money she borrowed from the bank?z