Coupon rate 12% coupons per year 2 years to maturity 15 price $1,153.72 face value $1,000.0 tax rate 40% how do you calculate the market interest rate

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.