I know that I have to use the Pert formula, but I don't know how to solve for specific parts.
The are continuous compound problems with bits left out.
1. Principal = $10,000 Annual rate =? Time to double= 12 years Amount after 10 years = ?
2. Principal= $600 Rate= ? Time to double=? After 10 years= $19,205
3. Principal=? Rate = 8% Time to double=? After 10 = $20,000