Can anyone Help me solve this?

In July 2010, Mike deposits $100 semiannually into an account compounding quarterly at 7% nominal annual interest for three years.
In July 2013, he increases the deposit to $200 every 6 months, but the
interest rates falls to 5% for that year. In July 2014, he deposits $2000
more (in addition to the previous deposits) in the bank for 5 years at a
fixed rate of 6%. The interest rates from July 2014 to end of 2018 remain
fixed at 6%. Find the value of his savings at the end of 2018.