Plum Supply had net income of $240,000 with a net profit margin of 0.35 and a tax rate of 15%. They had interest expense of $25,000. Using this information, what was S&S's operating profit margin?
Select one:
a. 37.53%
b. 27.33%
c. 29.75%
d. 41.18%
e. 48.12%
f. 45.17%
g. 10.42%
h. 44.82%