salesperson set a goal to earn $2,800 in October. He receives a base salary of $1,400 per month as well as a 8% commission for all sales in that month. How many dollars of merchandise will he have to sell to meet his goal?

To calculate the total amount of sales he needs to meet his goal, we can set up the following equation:

Total earnings = Base salary + Commission

$2,800 = $1,400 + 0.08x

Subtract $1,400 from both sides:

$1,400 = 0.08x

Divide by 0.08 on both sides:

x = $1,400 / 0.08

x = $17,500

Therefore, the salesperson will need to sell $17,500 worth of merchandise to meet his goal of earning $2,800 in October.