Carmen's Beauty Salon has estimated monthly financing requirements for the next six months as follows:

January	$ 8,200	April	$ 8,200
February	2,200	May	9,200
March	3,200	June	4,200

Short-term financing will be utilized for the next six months. Projected annual interest rates are:

January	6.0%	April	13.0%
February	7.0%	May	12.0%
March	10.0%	June	12.0%

a. Compute total dollar interest payments for the six months.

Note: Round your monthly interest rate to 2 decimal places when expressed as a percent. Round your interest payments to the nearest whole cent.

b-1. Compute the total dollar interest payments if long-term financing at 12 percent had been utilized throughout the six months?

Note: Round your monthly interest rate to 2 decimal places when expressed as a percent. Round your interest payments to the nearest whole cent.