please do this sheet on excel

On the same book, create a new sheet to answer the following: You are planning to deposit part of your salary as investment in a bank account with an interest rate of 5% (so $x will grow into $x+5%$x). More precisely, you are going to deposit 30% of your monthly salary. Assuming that your current salary is $4000, and it will increase by 2% every month, in how many months you will have more than $20,000 in your bank account