leonard's company purchases a window hardware from william hardware and co and sells to market.

Leanard is also considering manufacturing the product internally. William hardware co charges $5 per unit with a minimum of 3,000 units. if leonard manufacture the product in home, the process set up fee could be $12000 and the $3 per unit for labour materials

a. Draw a roaugh graph illustrating the crossover point

b. determine the number of units where either choice is the same cost