Chana pays $7.35 per pound for up to19 pounds of beads. For more than 19 pounds, she pays $5.35 per pound. Is the amount Chana pays a function of the weight of the beads she buys? Explain your reasoning.

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.

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.