If Karen placed an amount of 9,700 Php in an investment that pays an interest rate of 12%, compounded semi-annually. She wants her money to grow to a total amount of 50,000 Php. What is the rate of...

If Karen placed an amount of 9,700 Php in an investment that pays an interest rate of 12%, compounded semi-annually. She wants her money to grow to a total amount of 50,000 Php.

What is the
rate of interest and initial or principal amount?
Then
how many times is compounding done in a year?