What is the fall of the byzantine empire

Need plz been trying to do it for a long time and still haven’t succeeded

I’m how many different ways can she give the four remaining flowers to the rest of the teachers in the afternoon

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.