need to do a binary linear programming on the following question

We need to build up to 6 power plants (L, to La) to serve 7 communities (C, to C). The cost to build a power plant is 6.5 million (AED). The maximum capacity of each plant is 11 million watts. The demand of each community is given below: Community 1234567 Demand in 3464524 millions watt The benefits (in $/watt but sometimes it is a loss) from serving the community is given below: Location C1 C2 C3 C4 C5 C6 C7 11 L2 L3 14 LS L6 4 4.52.51.53.54.2.0.5 44.52.50.5 0.5-3.5 3.5 5 41.5 4.53.5 O L33 5 185.53.3 1.3 0.5 1 1.55.5 4 5 3 -10 1.545 43.3 2 Find which power plants should be built