COULD SOMEONE PLEASE HELP ME WITH THIS IT'S REALLY IMPORTANT-

What is the area of triangle abc if a = 8, b = 11, and c = 15?

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )