Answer:
15√2 (fourth answer choice)
Step-by-step explanation:
Note that the ratio 15/x is the tangent of 30 degrees, which in turn is 0.577 or 1/√2. Then:
1/√2 = 15/x, or
1 5
----- = ----- or x = 15√2
√2 x
(B.) 41
Visualizing it by drawing out boxes with how many rows and columns of socks there are, you'll see that by fig. 5, it's going to have 41 socks.
