I believe the answer is 2/3n
You can download answer here
tinyurl.com/wpazsebu
For every pair of slacks Arlo can choose 4 dresses so the number of ways is
6 * 4 = 24 answer
The correct answer is 13.86.
In order to find this, we must first note that the tangent of any angle is equal to the opposite side length over the adjacent side length. If we use that formula and the 60 degree angle, we can find y.
Tan(angle) = Opp/Adj
Tan(60) = y/8
8Tan(60) = y
13.86 = y