Geometric Sequences Word Problems

Carey is organizing her books and putting them on shelves. She put 2 books on the first shelf, 8 books on the second shelf, 32 books on the third shelf, and 128 books on the fourth shelf. What kind of sequence is this?

Which sequence type, and common ratio/difference is correct for the table?

Daisy received $2 on her first birthday. Each year, the amount of money she received tripled. How much money will she receive on her 5^th birthday?

You have $729 in the bank on Day 1, $243 on Day 2, and $81 on Day 3. Write the explicit formula that expresses the sequence.

A child on a swing is let go from a vertical height so that the distance he travels in the first back - and - forth swing is exactly 9 feet.  If each swing decreases the distance by 85 % write a geometric series that expresses the distance the child travels in feet. 

The local power company plans to raise rates to cover the increased cost of producing power. They determine the costs will increase by 4.2% per year for the next 10 years. If you paid a total of $1031.60 for power last year, what would you expect to pay for power over the next 10 years? 
(Hint: Find a₁, a₁₀, and r)

This image shows how a certain bacteria grows in a petri dish. What is the common ratio of this sequence?

Match the following for the prompt: A bacteria colony starts with 5 bacteria and triples every hour.

How many strands of the virus will there be after 15 divisions? Start with 1.