Real Estate Finance. I'm mainly having a problem with question 4 and 5. how do I solve using a BA II Plus?

You borrow a full amortized mortgage of $200,000 at 5% rate for 20 years with monthly payments. 1. Monthly payments, a.$1319.91b.$1359.18c.$1532.11d.$1219.11 2. Principle payment during month 1 , 3. The outstanding loan balance if the loan is repaid at the end of year 2 , 4. Total principal through year 2 , a. $12565.98 b.\$13876.25 c. $12254.9 d. $14123.68 5. Total interest paid over 2 years, a.$19.422.96b.$19542.32c.$20056.19d.$18596.39