Given, Option A: Hourly wage is $19 and the salesperson works 40 hours per week. So, he will earn in a week

Now, according to option b, he will get 8% commission on weekly sales.
Let. x = the amount of weekly sales.
To earn the same amount of option A, he will have to equal the 8% of x to $760
So,

Or,

Or,

the salesman needs to make a weekly sales of $9,500 to earn the same amount with two options.