Answer:
$2.64
Step-by-step explanation:
Divide .99 by 6 to get 0.165, then multiply 0.165 by 16 to get 2.64.
Set this up as a proportion.
400/15 = x/6
Solve for x.
I just hope to help! :)
You didn't supply any rules or constraints so.... 1 in., 1 in., and 1 in.
You can use the Pythagorean Theorem to check if the side lengths are appropriate.

–this is true.
The graph is not proportional because it doesn’t go though the origin aka (0,0)