Marcella wants a job as a sales repressntativemShe reives teo job offers from companies thay sell office machines to businesses. Office Essentials offers Marcella a salaray of $2,000 per month, plus a commission of $125 for every office machines she sells.Everything Office offers her a salary of $2,000 per month, plus s commission of $150 for every office machine she sells.Let M repsent the total monthly earnings, in dollars, and let n represent the number of office machines sold in a. month.For each company, write an equation that repsents the relationship between M and n.