The case study and the questions are uploaded as two screenshots:

Solaris is the sole supplier of solar panels in Sunnylandia. Solaris has no fixed costs and can supply solar panels at a constant marginal cost MC of $10 per panel. There are two different categories of customers of solar energy, business and residential. The businesses' demand for solar panels is Q(P) = 240-3P. The residential demand for solar panels is OR(P) = 80 - 5P.Page