A bacteria culture grows by 30% each hour. If you start with 200 bacteria, how many will there be after 4 hours? Write the exponential equation and calculate the result.

A tree grows 15% taller each year. If the tree is currently 10 feet tall, how tall will it be in 3 years? Write the exponential equation and find the height.

A car's value depreciates by 20% each year. If the car is worth $15,000 now, what will its value be in 4 years? Write the exponential equation and solve for the value.

A savings account earns 5% interest compounded annually. If you deposit $1,000, how much will you have in 6 years? Write the exponential equation and calculate the total amount.

A certain species of fish in a lake increases its population by 25% each year. If there are currently 400 fish, how many will there be in 2 years? Write the exponential equation and find the population.

A smartphone's battery life decreases by 10% each year. If the battery lasts 24 hours now, how long will it last in 3 years? Write the exponential equation and calculate the remaining battery life.

A viral video on a social media platform gains 50% more views each day. If it starts with 1,000 views, how many views will it have after 5 days? Write the exponential equation and determine the total views.

A town's population is 10,000 and is growing at a rate of 4% per year. What will the population be in 10 years? Write the exponential equation and calculate the future population.

A plant grows at a rate of 12% per month. If it is currently 5 inches tall, how tall will it be in 6 months? Write the exponential equation and find the height of the plant.