Write the rule for g. g(x) = ?

At which value in the domain does f(x) =0?

When the ball has traveled a distance of

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?