A number of gym members reported the time they spend exercising at the gym. The line plot displays the responses from the gym members. What fraction of the gym members spend more than an 1/2 hour exercising? 5/8
7/16
1/2
9/16

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 are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

What is the missing step in this proof ?