What is the slope of the libe passing through the points (-1,3) and (2,9)

If square root x = -7, then x= -49 true or false

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.