Franklin Templeton has just invested $9,460 for his son (age one). This money will be used for his son's education 20 years from now. He calculates that he will need $44,000 by the time the boy goes to school What rate of return will Mr. Templeton need in order to achieve this goal? Use Appendix B for an approximate answer, but calculate your final answer using the formula and financial mehodd intermediate calculations. Round your final answer to 2 decimal places.) Rate of return