Jim's uncle is 4 times as old as his nephew jim. in 10 years, jim's uncle's age will be 20 years more than twice jim's age. how old is jim's uncle right now?

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.