Determine the area of the shaded region in fully factored form. Image is provided below. Plz i need the answer with the full process. I will give brainliest to the one who answers with the full process.

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.