Write or type work and solutions on a separate paper. if written, write legibly. 1. suppose that a pancake recipe designed to feed three people calls for 600 ml of flour. how many milliliters of flour would you use if you wanted to extend the recipe to feed five people? 2. a womans foot is 9 inches long. if she steps off the length of a room by placing one foot directly in front of the other, and finds the room to be 15 foot-lengths long, what is the length of the room in inches? in feet? 3. if a mile is 5280 ft long and a yard contains 3 ft, how many yards are there in a mile? 4. extra credit: a suspect "gold" ring is placed in the graduated cylinder filled to 5 ml and the water level rises to 5.15 ml. the ring is weighed on an analytical balance as 2.8315 g. a. find the density of the ring. b. if the density of gold is 19.32 g/ml, is the ring pure gold? explain your c. what is the density of gold in kg/cm3? answer.