please help

Daniela's Coffee Shop blends coffee on the premises for its customers. It sells two basic blends in one pound bags: Mountain Dark, and Daniela's Specialty. It uses three different types of coffee to produce the blends, Brazilian, Mocha, and Colombian. The shop uses the following blend recipe requirements. Blend Selling Price ($/kg) Mix Requirements Mountain Dark 15.00 at least 60 % Brazilian; no more than 20 % Mocha Daniela's Specialty 9.00 no more than 40 % Colombian The cost of Brazilian coffee is $4.00/kg, the cost of Mocha coffee is $5.50/kg, and the cost of Colombian is $6.00/kg. The shop has 80 kg of Colombian, 110 kg of Brazilian, and 70 kg of Mocha. The shop wants to know how much of each blend to prepare each week in order to maximize profit. The LP model for the problem contains 5 decision variables. 8 decision variables. 4 decision variables. 6 decision variables. None of the above