Which two numbers add up to 6 and multiply to 10?

Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?