4. For each of the following situation, calculate the yield to maturity or if it is difficult to write the equation needed to calculate the yield. - A loan for $350,000 that requires a payment of $475,000 in five years (3) A discount bond with a price of $720 that has a face value of $1,000 and matures in five years. - A corporate bond with a face value of $1,000, a price of $950, a coupon rate of 8%, and a maturity of six years. (A) A student loan of $4,000 that requires payment of $275 per year for 20 years. The payment starts in three years. 4. For each of the following situation, calculate the yield to maturity or if it is difficult to write the equation needed to calculate the yield. - A loan for $350,000 that requires a payment of $475,000 in five years (3) A discount bond with a price of $720 that has a face value of $1,000 and matures in five years. - A corporate bond with a face value of $1,000, a price of $950, a coupon rate of 8%, and a maturity of six years. (A) A student loan of $4,000 that requires payment of $275 per year for 20 years. The payment starts in three years