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The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?