What I Have Learned I. Solve the following measurement problems involving conversion of units. Express your answer in standard notation/form and in scientific notation. Answers should include three significant figures. 1. Joeff, who is an exchange student from Germany, is studying in the United States. He wishes to buy a new pair of jeans, but the sizes are all in inches. If his waist size is 85 cm, what is its waist size in inches? 2. The total area of the alveoli in the human lung is about 70m.What is the area in a) cm2 b) in2 3. A Chevrolet Camaro convertible travels along the highway at a speed of 128 km/h. What is it the speed of the car (a) in meters per second? (b) in miles per hour? 4. The Spirochetes, contain very thin bacteria with some species having cell diameters of about 0.15um.What is its diameter in nanometers? 5. A government owned land will be set converted as a new wildlife refuge. Its dimensions are 5 x 105meters by 4 x 10* meters. Find the area of the land in square meters. II. Answer accordingly. 1. Explain the importance of having a standard in measurement. 7/9 2. What are the advantages of writing quantities in scientific notation