You have a gift card worth $90. you want to buy several movies that cost $12 each. write and solve an inequality that represents the number of movies you can buy and still have at least $30 on the gift card

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.