Charlie deposits $1,000 on the 1st of each year into his investment account. The account grows at a rate of 8% per year. How much money is in the account on the 1st day of the 11th year?

A fisherman harvested 350 kilograms of fish on Monday. From Monday through Friday, the amount of fish he harvested each day increased by 10%. What was the total amount of fish he harvested during these five days?

Sapna's grandparents deposit $1,200 into a college savings account on her 5th birthday. They continue to make this birthday deposit each year until making the final deposit on her 18th birthday. If the account earns 5% interest annually, how much is there after the final deposit?

A farmer buys a new tractor for $75,000. If the tractor depreciates in value by about 6% per year, how much will it be worth after 15 years? 

Find the value of a 10-year-old car if the purchase price was $22,000, and it depreciates at a rate of 9% per year.

A new website got 4,000 page views on the 1st day. During the next four days, the page views increased by 30% each day. What was the total amount of page views in the 1st five days?

If a piece of machinery depreciates (loses value) at a rate of 6% per year, what was its initial value if it is 10 years old and worth $50,000? Give your answer to the nearest $1,000.

A bacteria doubles its population every 5 minutes. How many minutes will it take the bacteria to have 2560 if its starting population is 10 bacteria? 

Rabia inherited some land worth $50,000 that has increased in value by an average of 5% per year for the last 5 years. If this rate of appreciation continues, about how much will the land be worth in another 10 years?

A skin cell is about 3 × 10^-8 m across. The Earth's diameter is 1.3 × 10⁷ m. What is the Geometric Mean of a Cell and the Earth?