What is the greatest number of of acute angles that a triangle can contain?

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

1. if events a and b are non-overlapping events, how do you find the probability that one or the other occurs? 2. what does it mean if p(a or b) equals 1?