Walumbola Ltd manufatures dishwashing machines for a large retail stores. The company sells a dishwashing machine to these store for N$25,000.00 and incurs the following manufacture costs: Insurance - N$15,000.00 Fuel - N$3,000.00 Raw Material - N$14,000.00 Salaries - N$80 000 Leases N$13,000.00 Rent N$25,000.00 Telephone - N$7,000.00 How many dishwashing machines must Walumbola Ltd sell to break even