Asalesman has a base salary of $1,400. he receives an additional 3.5% commission on his total sales. last month his total salary was $2,800.which equation could be solved to find the amount of his total sales?

 Our required equation would be

Step-by-step explanation:

Since we have given that

Amount of salary a salesman has = $1400

Rate of commission he received = 3.5%

On last month, the total salary = $2800

Let the amount of his total sales  would be 'x'.

So, our required equation would be :

So, if we solved the above equation , we get our required answer i.e. the amount of his total sales :

Hence, the amount of his total sales is $40000.

Therefore, our required equation would be