1. An investor starts with $125 and finds a portfolio that will allow his money to TRIPLE every year. How much money will he/she have after 12 years? 2. In 1985, there were 285 cell phone subscribers in the small town of Centerville. The number of subscribers increased by 3.5 times per year after 1985. How many cell phone subscribers were in Centerville in 1994?

3. Bacteria can multiply at an alarming rate when each bacteria splits into two new cells, thus doubling. If we start with only one bacteria which can double every hour, how many bacteria will we have by the end of one day?

4. Each year the local country club sponsors a tennis tournament. Play starts with 128 participants. During each round, half of the players are eliminated. How many players remain after 5 rounds?

Can y’all please help me, I’m having a hard time with Algebra 2 :/ Thanks y’all <3