101. Money was invested at x% compounded quarterly. If it takes the money into quadruple in 17.5 years, find the value of x.

102. If the single payment amount factor for a period of 5 years is 1.33822, what is the nominal rate of interest?

103. A couple borrowed P4,000 from a lending company for 6 years at 12%. At the end of 6 years, it renews the loan for the amount due plus P4,000 more for 3 years at 12%. What is the lump sum due?