Practice question for an exam, want to double-check my work, If you have the time to write out an answer that would be greatly appreciated :)

[10] An industry consists of two firms that interact strategically using price. The demand function for the product of firm i is q1 = 48 10p1 + 2p2 and its marginal cost of production is 4. Find the best response function of firm 1. Hint: This is not explicitly covered in the lecture. The firms are choosing price, not quantity, but they still maximize their profits