Answer:
He sold 30 3-line classified ads
Step-by-step explanation:
Commission for sales of each 3-line classified ad = $1.50
Commission for sales of each 5-line classified ad = $2.25
Total number of ads sold = 80
Earnings = $157.50
Since, the commission for the sales of 5-line classified ad is greater than the commission for the sales of 3-line classified ad, he sold 50 5-classified ads and 30 3-classified ads
Commission for 50 5-classified ads = 50×$2.25 = $112.5
Commission for 30 3-line classified ads = 30×$1.50 = $45
Total commission = $112.5+$45 = $157.50
