Calculate the net profit margin for a lamp sold for $80 that has a $50 cost
of goods sold and 20% operating
expenses.
A. 28%
B. 18%
C. 25%
D. $14

Aliaa is skating down a ramp. the wheels on her skateboard have diameters of 60 \text{ mm}60 mm60, space, m, m. what is the distance aliaa travels when her skateboard wheels make 202020 revolutions? round your answer to the nearest \text{mm}mmm, m.