Find m∠4 if m∠1 = 100°

With alll of except for the 2 that i did already

Question 4 of 10 2 points what is the second part of the process of investigating a question using data? a. rephrasing the question o b. describing the data c. collecting the data o d. making an inference submit

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3