Wind chill is a measure of how cold people feel when exposed to wind outside. A good estimate for wind chill can be found using this calculation:
W = T - 0.7 \cdot S
Where W represents the wind chill, T represents air temperature measured in degrees Fahrenheit (^\circ F), and S represents wind speed measured in miles per hour (mph). Suppose the air temperature is 36 \, ^\circ F and the wind speed is 18 mph. Which of the following is closest to the approximate wind chill?
Answer Choices
A. 18
B. 23
C. 28
D. 32
E. 35