Can someone help ill give a Brainliest to whoever knows if you are right.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

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.