$7$ A loan is being repaid in $20$ level annual installments. The first payment is at the end of the first year. The principal portion of the $11$ payment is $$109$ and the interest portion is $$23.$ Find the level annual payment R al $86$ b$)109127$ dj $119)$ Determine the annual effective interest rate paid on the loan. a$)1\mathrm{.}9\%$ b$)1\mathrm{.}8\%$ c$)2\mathrm{.}9\%$ d$)2\mathrm{.}6\%$ e$)132$ el $3\mathrm{.}8\%8$ Compute the PV of a perpetuity$-$immediate with a first payment of $$1000$ at the end of the first year and payments are increasing by $2\%$ each year. The annual effective interest rate is $5\mathrm{.}1\%.$ c$)35,558$ b$)32,258$ a$)30,556$ d$)45,256$ e$)48,1569.$ A $20-$year loan of $$100,000$ is being repaid by level monthly payments at the end of each month. Find the total amount of interest paid on this loan if the interest rate is $9\%$ compounded monthly. a$)45,956$ d$)105,921$ b$)65,556$ c$)95,329$ e$)115,934$