Following information pertains to X Company's two products:

DIGICAM

Break Even point- Units--------- 360

Selling Price-----------------------4,500

Variable Costs---------------------2,250

VIDEOCAM

Break Even point- Units--------- 250

Selling Price-----------------------14,250

Variable Costs---------------------5,000

a. Determine the weighted average contribution margin.

b. How much is the total fixed costs?

c. How many units of each product should be sold if the company desires to earn profit before tax of $515,000?