What is the measure of the missing exterior angle?

Find the missing part. use an improper fraction for your answer.

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Don't know how to find x given these segment lengths