With #20! i know the drawing part; how do i "estimate the measure of one angle"

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.