A sales representative receives a salary of $100 per week and earns a commission of 20% on all sales she makes. How many dollars’ worth of sales does she need to make in order to bring her total weekly income to $600?	Choose the correct choice from the following options:
A) $3,000 B) $3,150 C) $4,000 D) $2,500 E) $5,000
We're told that a sales representative receives a salary of $100 per week and earns a commission of 20% on all sales she makes. We're asked how many dollars’ worth of sales will bring her total weekly income to $600.   Since the salesperson receives a $100 salary, the remaining $500 has to be accounted for by the 20% commission. Since those numbers are rather specific, we're likely dealing with a 'round number' for total sales.   Let's TEST Answer C: $4,000   Since 20% of $1,000 = $200   20% of $4,000 = 4($200) = $800   This is TOO HIGH (it's supposed to be $500), so we need a LOWER total sales figure.   Let's TEST Answer D: $2,500   Since 20% of $1,000 = $200   20% of $2,500 = 2.5($200) = $500   This is an exact MATCH for what we were told, so this MUST be the answer.   Final Answer:   $2,500
<result>D</result>
A sales representative receives a salary of $100 per week and earns a commission of 20% on all sales she makes. How many dollars’ worth of sales does she need to make in order to bring her total weekly income to $600?