Mark and marcy have obtained a 30-year, fixed rate mortgage for $650,250 with a 7.15% interest rate. they purchased 2 points and their rate is now 6.975%. factoring in the cost of points, when is the break-even point on their mortgage?

14 years, 2 months
9 years, 6 months
7 years, 1 month
7 years, 0 months

Caleb construction (cc) incurs supervisor salaries expense in the construction of homes. if cc manufactures 100 homes in a year, fixed supervisor salaries will be $400,000. with the current construction supervisors, cc's productive capacity is 150 homes in a year. however, if cc is contracts to build more than 150 homes per year, it will need to hire additional supervisors, which are hired as full-time rather than temporary employees. cc's productive capacity would then become 200 homes per year, and salaries expense would increase to $470,000. how would cc’s salaries expense be properly classified? fixed variable mixed stepped curvilinear