1. At an amusement park, 66 of 90 rides have a height restriction. What fraction of the rides, in its simplest form, has a height restriction?
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3. 2. A bicycle rider is riding at a rate of 15 km/h for 4/9 of his ride, 10 km/h for 2/9 of his ride, and 8 km/h for the remainder of the ride. How much of his ride is he riding at a rate greater than 8 km/h?
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5. 3. On an electric bill, about 1/8 of the energy is from solar energy and about 1/10 is from wind power. How much of the total bill is from solar energy and wind power combined?
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