The telephone company offers two billing plans for local calls. Plan 1 charges ​$35 per month for unlimited calls and Plan 2 charges ​$19 per month plus ​$0.05 per call.
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2. b. Explain the meaning of the answer to part a.
help ASAP! answers to part a and b