1. Samantha is trying to complete the free throw wellness challenge. In order to earn her chip, she needs to hit 13 out of 20 free throws on the basketball court. Her last three attempts were 12 out of 20,10 out of 20, and 9 out of 20. How far is her average free throw percentage from the needed free throw percentage to earn the chip? (round to the nearest whole number)

2. Jill starts at a salary of $40,000 per year and receives benefits that cost the company50% of her salary. She gets 12 weeks of training, 2 weeks of vacation, and 10 paid holidays. Using 52 weeks per year,40 hours per week,8 hours per day, and not counting the trainer's cost, how much does it cost the company for every Day in the first year that she is available to help a customer?

3. Suppose a company did $3,000,000 in annual maintenance in 2013 and expects 85% of those to renew for 2014. Suppose that product sales for 2013 were $3,000,000 (which included free maintenance in 2013) and 60% of those were expected to pay an annual maintenance of 20% of the purchase price in 2014. What will be the annual maintenance collected in 2014?

4. A school cafeteria sits 55 students at one time. There are 217 students in the school. How many lunch groups will be needed to serve all students?

5. Jane went shopping with $200. She spent one fifth of her money on clothes, $30.50 on a bike lock, and 10% of her original money on groceries. How much does she have left, to the nearest penny?

6. A salesman has a base salary of $2,600 per month and makes a 3% commission on each unit sold. If his total annual compensation is $48,000, and he sold 2000 units, how much does each unit cost?

7. Suppose a company did $2,000,000 in annual maintenance in 2013 and expects 80% of those to renew for 2014. Suppose that product sales for 2013 were $2,000,000 (which included free maintenance in 2013) and 75% of those were expected to pay an annual maintenance of 10% of the purchase price in 2014. What will be the annual maintenance collected in 2014?