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What are the exclude value of mn+3m

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

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.