An approximate equation for the efficiency E (in percent) of an engine 1 is E = 100 1 where R is the compression ratio. Explain how VR2 this equation can be written with fractional exponents and then find E for R = 8.86. How can this equation be written with fractional exponents? O A. By using the law of exponents Va y Wa = " Va O B. By using the law of exponents va vb = m m CC. By using the law of exponents Vam = a n n O D. By using the law of exponents Wan zam E = (Round to two decimal places as needed.)