6 out of the 60 employees at the sports shop are part-time employees. What percentage of the employees at the sports shop work part-time?

Percentage of part time employees = (part-time employees/total employees) * 100 = (6/60) * 100 = 1/10 * 100 = 10%

B. 73.19 mi/hr

Step-by-step explanation:

First we need to define the angles from a common reference.  Robin's watercraft is moving 75° west of south, which is the same as 15° south of west.  The river is flowing at 75° south of west.

The watercraft velocity relative to the water is:

wx = 70 cos 15° ≈ 67.615

wy = 70 sin 15° ≈ 18.117

The river's velocity is:

rx = 6 cos 75° ≈ 1.553

ry = 6 sin 75° ≈ 5.796

Robin's net velocity is:

vx = wx + rx ≈ 69.168

vy = wy + ry ≈ 23.913

The speed (magnitude of velocity) is:

v = √(vx² + vy²)

v ≈ √(69.168² + 23.913²)

v ≈ 73.19