The athletics club is ordering tee shirts so it has them ready when new members join. The shirts cost $8 each. It cost$3.25 for printing up to 10 tee shirts with the club logo, $6.00 for 11 to 19 tee shirts, $8.75 for 20 to 29 tee shirts and$11.50 for 30 to 40 tee shirts. Packing and delivery is a standard charge of $4.50.The club has $260. How many tee shirts can be purchased with the club logo printed on them?
