A sales representative receives a salary of $150 per week and earns a commission of 15% 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 $900?
Choose the most appropriate option
A) $3,000 B) $3,150 C) $4,000 D) $4,150 E) $5,000
We're told that a sales representative receives a salary of $150 per week and earns a commission of 15% on all sales she makes. We're asked how many dollars’ worth of sales will bring her total weekly income to $900.   Since the salesperson receives a $150 salary, the remaining $750 has to be accounted for by the 15% 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 15% of $1,000 = $150   15% of $4,000 = 4($150) = $600   This is TOO HIGH (it's supposed to be $450), so we need a LOWER total sales figure.   Let's TEST Answer E: $5,000   Since 15% of $1,000 = $150   15% of $5,000 = 5($150) = $750   This is an exact MATCH for what we were told, so this MUST be the answer.   Final Answer:   $5,000
<result>E</result>
A sales representative receives a salary of $150 per week and earns a commission of 15% 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 $900?