The art and history museum offers a family discount card for a donation of $45. For what number of visits will the total cost of the visits (including the price of the discount card) be less expensive for a family of two adults and 1 child if they have purchased the discount card?

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.

What is a rational number between 9.5 and 9.7

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.