1. How much longer (percentage) is a one
mile race than a 1500-m race (the metric mile)?
2. The diameter of the Moon is 3480 km. (a)
What is the surface area of the Moon? (b) How many times larger is the surface
area of the Earth?
3. Estimate the order of magnitude (power
of ten) of: (a) 2800, (b) 86.30 X 102, (c) 0.0076, and (d) 15.0 X 108.