welpaly welpaly 23-04-2018 Mathematics contestada an expression is show. (4*10^-5) + (2*10^-5) / (3*`10^7) which expression is equivalent? (show steps) a. 2*10^-17 b. 2*10^-12 c. 2*10^-2 d. 2*10^12 I'm really confused on how to solve it so can you please put steps and helpppp :)