A high tech company has produced a total of 20 high-power laser systems that could be used to destroy any approaching enemy missiles of aircraft. The 20 units have been produced, funded in part as private research within the research and development, but the bulk of the funding came from a contract with the US Department of Defense (DoF) Testing of the laser units has shown that they are effective defense weapons, and through redesign to add portability and easier field maintenance, the units could be truck-mounted. DoF has asked the high tech company to submit a bit for 100 units The 20 units that the high tech company has built so far cost the following amounts and are listed in the order in which they were produced Unit Cost (R Millions) number 1 R13 2 11.4 3 11 4 10.3 5 10.2 99 96 95 93 92 9 89 8.7 8.6 85 86 84 04 83 09:33 13°C A 2022/06 6 7 8 9 10 11 12 13 14 15 16 17 18 19 + V 0 C e 4