1. three- fourths of an ounce of a medication are required for a 120 lb adult. at the same rate, how many ounces of medication are required for a 200 lb adult?
2. if a train travels between two cities in 3 hours at an average speed of 65 mikes per hour hour, how long would it take at an average speed of 80 miles per hour?
3. neglecting air resistance, the distance (d) that an object falls varies directly as the square of the time (l) it has been falling. if an object falls 64 feet in 2 seconds, determine the distance it will fall in 6 seconds
4. x varies inversely as y³. x is 16 when y is 15. find x when y is 2.