Question: 1) Vitaly cracks open a piggy bank and finds $4.05 (405 cents), all in nickels and dimes. There are 9 more dimes than nickels. How many nickels does Vitaly have?
2) Olga runs a business out of her home making quilts. Each month she has fixed costs of $350. In addition, for each quilt she makes, she incurs an additional cost of $8.75. If her total costs for the month were $560.00, how many quilts did she make?
3) Devin has 75 feet of decorative fencing which he will use for the border of a small circular garden. Use the formula for the circumference of a circle to find the diameter of the circular garden, correct to the nearest hundredth of a foot. Use
4) If 8 apples cost $5.84, what will be the cost of 18 apples (assuming an equal rate)? Use a proportion to solve this problem and round your answer to the nearest penny.
5) Daniel earns a commission on all sales he makes. He sells a dining table for $965 and earns a commission of $75. Use the percent formula to find the percent commission, rounded to the nearest tenth of a percent.
6) A bus driver making a salary of $4125 per month has her salary increased to $4500 per month. Use the formula for percent increase to find the percent increase correct to the nearest tenth of a percent.
7) Suppose that $9500 is invested at 2.3% simple interest per year. Use the simple interest formula to find the balance after 5 years?