Using the reciprocal services method, which of the following equations represents the algebraic expression for the total costs of a Janitorial Department (J) that includes not only $350,000 of direct costs but also 30% of the Maintenance Departments (M) cost? a. J=$350,000+(0.30M) b. J=($350,0000.30)+M c. J=$350,000(0.30M) d. J=$350,000+(0.30M)