For his long distance phone service, Abdul pays a $3 monthly fee plus 11 cents per minute. Last month, Abdul's long distance bill was $20.27 For how many minutes was Abdul billed?

Describe how fraction strips can you order fractions

Find an equation of the line perpendicular to the graph.

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?