Today, 6 friends went out for lunch. their total bill was $41.88, including tax and gratuity. they decide to split the bill equally and each paid a $10 bill. how much money will each person get back?

Carla is saving money for a trip this summer. she already has some money in her savings account and will add the same amount to her account each week. at the end of 2? weeks, carla has? $130. at the end of 8? weeks, she has? $280. write a linear function in the form y=mx+b to represent the amount of money m that carla has saved after w weeks.