A phone company offers two monthly plans. Plan A costs 12 plus an additional 0.15 for each minute of calls. Plan B costs 29 plus
an additional 0.10 for each minute of calls. For what amount of calling do the two plans cost the same? What is the cost when the two plans cost the same?
We know that a three-pose portrait package has a sitting fee of $35 and <span> a six-pose package has a sitting fee of $60. The total amount they collect is $690.