Profit is always calculated as revenue minus expenses. If a company's expenses were $10 million, write an equation that expresses profit, P, (in millions of dollars) in terms of revenue, R, (in millions of dollars). Then, determine the profit when revenue is $25 million. 
 a. P= 10-R; $15 million 
b. P=R-10; $15 million 
c. P=R-10; $35 million 
d. P= 10- R; $35 million 
Please select the best answer from the choices provided Ο Α OB