Step-by-step explanation:
6-8/1- -1 = -2/2 = -1 is the slope
y - 8 = -1(x+1)
Answer:
angle A=30°
Step-by-step explanation:

The interquartile range is a better measure of spread because, The interquartile range is often seen as a better measure of spread than the range as it is not affected by outliers.
hope it helps.
have a good day.
Sum up both of the angles and then round them to the nearest tenth