1. At a '20\% off' sale, Susan bought a pair of slippers that normally retail for Br25. What discount did she get, and how much did she have to pay for the slippers?
2. A store has a ' \( 45 \% \) off clearance' sale on all electrical items. Jason bought a juicer (normal price Br29) and a microwave oven (normal price Br161). What was the total price he paid at the sale?
3. A used car salesman receives \( 2.5 \% \) commission on all the cars he sells. He sold one car for Br8 500, another for \( \operatorname{Br} 11000 \), and another for Br23 500. What was his total commission?
4. An art auction house retains 8\% of all money gained at auction. A 'Dobell' was sold for Br240 000 . What was the commission?
5. A store offers a ' \( 20 \% \) off' sale on all items. What is the discount on a Br315 TV and a Br42 picture frame?
6. At a '15\% off' sale, Dale bought an electric chainsaw, which normally retails for Br140. What discount did he get, and how much did he have to pay for the saw?
7. A store has \( 12.5 \% \) off all women's clothes. Saffron bought a top (normal price Br45) and a skirt (normal price \( \mathrm{Br} 35 \) ). What was the total price she paid?
8. Charlotte bought jeans, normally priced at Br85, on sale for just Br63.75. What was the percentage discount?
9. A used caravan salesman receives \( 5 \% \) commission on all the vans he sells. He sold one van for Br12 500, and another for Br14 000. What was his total commission?
10. A real estate agent charges \( 1.8 \% \) commission on a house sale. What is the commission on a house which sold for \( \mathrm{Br} 650000 \) ?
11. Naomi is a real estate agent. He charges commission for sales as follows: 3\% on the first Br100,000, and \( 1.75 \% \) on any amount above Br100,000. Last week Naomi sold a house for a client for Br485,000. How much commission did he charge on the sale?
12. John is a car salesman. He is paid a commission of \( 2.5 \% \) on the value of sales he makes. Last month John sold cars to a value of Br185,000. How much commission did he earn for the month?
13. Jack is a builder. At the hardware store he receives a trade discount of \( 7.5 \% \) on all purchases, plus a further \( 2.5 \% \) discount if he pays his account within 30 days. Jack bought timber at the marked price of Br1,200, and paid his account ten days later. How much did Jack pay?
14. A retailer marks up all his outdoor goods by \( 45 \% \). If he bought a tent for Br680, what will the selling price be?
15. A heater that cost a retailer Br64.50 and was sold for Br95. What percentage profit does the
