Heyy!! I need some help solving these problems

1)Xenix Corp had sales of $375,000 in 2014. If management expects its sales to be $476,450 in 6 years, what is the rate at which the companys sales are expected to grow?(If you solve this problem with algebra round intermediate calculations to 6 decimal places, in all cases round your final answer to two decimal places, e.g. 8.72%.)

2) Caroline Weslin needs to decide whether to accept a bonus of $1,660 today or wait two years and receive $1,910then. She can invest at 6 percent. What should she do?

3)You have $1,800 that you want to invest in your classmates start-up business. You believe the business idea to be great and expect to get $4,900 back at the end of three years. If all goes according to the plan, what will be the return on your investment?(If you solve this problem with algebra round intermediate calculations to 6 decimal places, in all cases round your final answer to two decimal places, e.g. 8.72%.)