Question 950353
With annual salary alone, Tamara makes ($48000/yr)(1 yr/12 mos)=$4000 /month
The difference $6000-$4000=$2000 to be made up in commission.
At a commission rate of 4%, Tamara must make $2000/0.04=$50000 in sales to earn $2000 in commission. 
ANSWER: Tamara must make $50,000 in sales to have a monthly income of $6000.