AB would equal 3.57 or 3.6 rounded as your directions ask because the sides are supposed to be proportional. When you do 21/5, you get 4.2. Then, you can just do 15/4.2 and get 3.57.
Every one of the answers is correct except 3.4
The answer would be <span>99.99999989.</span>
Hey Kiddo.
The domain is the first number of each set.
Domain, 3, 6, -1, 5, -4
