Consider a candidate got two choices for his job that one paying $2100 per month and one paying $1000 per month plus a 5% commission on sales in the month.

(a)

Assume that the employee sold dollars of sales in his second position.

Then the commission the employee gets is, 5% of.

To make equal payments in position one and position two, equate.

Thus,

Therefore, sales of the employee per month for in his second position is,.