Please add a graph too 

In 2004, the country of Lesotho in southern Africa made most of its export earnings, 90% in 2004, from garment and textile factories. Many of these clothing items, particularly t-shirts, were sold in the U.S. Assume that the market for cotton textiles is perfectly competitive. Assume, also, that the market price for a t-shirt is $3 and the marginal cost function for a typical Lesotho textile factory is MC = .5+.1Q (Q is in 1000's of t-shirts). Solve for Q, the output of a typical Lesotho factory. Using a graph, illustrate the long run equilibrium for this Lesotho garment factory in 2004 (hint: you will need to graph the above two functions plus a hypothetical (but plausible) ATC function).