$5.00 Total Supplies -GST $22.75 $46.60 $88.25 $91.00 $136.50 $168.35 $204.75 Total GST $2.25 $4.50 $6.75 $9.00 $13.50 $16.65 $20.25 Mens Briefs Number sold 5 10 15 20 25 30 37 Selling Price $9.00 $9.00 $9.00 $9.00 $9.00 $9.00 $9.00 Total Supplies - GST $40.95 $81.90 $122.8