For questions $14,$ solve for the unknown variables $($identified with a $?)$ based on the information provided. $[$ Interest; Amount $][$ Principal $/$; Present Value $][$ Interest; Rate $]$ Time $[$ Maturity $/$; Future Value $]$

$1.?$ $ $16,775\mathrm{.}00[0\mathrm{.}5\%$ per; month $]6$ months $?$

$2.??9\%2$ months $ $61,915\mathrm{.}00$

$3.$ $ $1,171\mathrm{.}44?53\%\%?$ months $ $23,394\mathrm{.}44$

$4.$ $ $2,073\mathrm{.}67$ $ $41,679\mathrm{.}00?227$ days $?$ Mechanics

For questions $1-4,$ solve for the unknown variables $($identified with a $?)$ based on the information provided. $"$N$/$A$"$ indicates that the particular variable is not applicable in the question.

$\backslash$table$[[,\backslash$table$[[$List Price or$],[$MSRP$]],\backslash$table$[[$First$],[$Discount$]],\backslash$table$[[$Second$],[$Discount$]],\backslash$table$[[$Third$],[$Discount$]],\backslash$table$[[$Net$],[$Price$]],\backslash$table$[[$Equivalent Single$],[$Discount Rate$]],\backslash$table$[[$Total$],[$Discount$],[$Amount$]]],[1.,$$$980\mathrm{.}00,42\%,$N$/$A$,$N$/$A$,?,$N$/$A$,?],[2.,?,25\%,$N$/$A$,$N$/$A$,$$$600\mathrm{.}00,$N$/$A$,?],[3.,$$$1,975\mathrm{.}00,25\%,15\%,10\%,?,?,?],[4.,?,18\%,4\%,7\%,$$$366\mathrm{.}05,?,?]]$