A chicken weighs t Ibs. It needs to be cooked for 20 minutes per Ib plus an extra 15 minutes. Write an expression for the total cooking time for t lbs.​

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.