At the lying lemon used car company each salesperson receives a 6.5% commission on sales. what would a salesperson earn if he sold a 1990 car for $9,290?

'1990' is necessary information, we don't need to know the year (unless it's the true value, in which case the process is entirely different.)

first, take 1% of $9360:


Then multiply that by 6.5:


That's quite a commission!