1. A pair of jeans originally priced at 80 dollars is on sale for 25% off. What is the sale price in dollars? ___
2. An item has a 40% discount. Which expression represents the final sale price if the original price is $S$?
3. A lamp is on sale for $42 after a 30% discount. What was the original price of the lamp in dollars? ___
4. A video game is priced at $55.00. If it is on sale for 20% off, what is the final price?
5. A kitchen appliance originally costing 250 dollars has a 10% discount. What is the amount of the discount in dollars? ___
6. The deductible mileage cost increased from 51 cents to 55.5 cents. What is the percent change, rounded to the nearest tenth of a percent? The percent change is ___%.
7. A university increased its tuition from 50 dollars per unit to 60 dollars per unit. What is the percent increase in tuition?
8. The standard bus fare increased from $1.50 to $2.25. What is the percent change? The percent change is ___%.
9. The price of a video game dropped from 60 dollars to 45 dollars. What was the percent decrease? The percent decrease is ___%.
10. A town's population decreased from 25,000 to 24,000 over a year. What was the percent change in population?