The vertical distance from a crest to the rest position ! I know I'm a little late but I just took this.
831.05, I think that is the correct answer
It is that the angle has to be formed by two pairs of congruent/corresponding sides of the triangle
Answer:

Step-by-step explanation:

-- Kenny's weight is 6/7 of Melvin's weight.
-- Melvin's weight is 7/7 of Melvin's weight.
-- The ratio of Kenny's weight to Melvin's weight is (6/7) / (7/7) = 6/7 .