The midpoint of PR is (-6,9).
P = (-15,4)
What are the coordinates of point R?

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

What is the answer to the question 5x+2x

Change negative exponents to positive. then solve. round to four decimal places