Write the Solution Set Using Interval Notation

Multiple Choice

Write the solution set using interval notation.
-When making a long distance call from a certain pay phone, the first three minutes of a call cost $2.10. After that, each additional minute or portion of a minute of that call costs $0.20. Use an inequality to find the
Maximum number of minutes one can call long distance for $2.50.

A) at most 1 minutes
B) at most 5 minutes
C) at most 13 minutes
D) at most 2 minutes