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Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).