Please help with all of the questions. I'm lost in my Econ class

Matilda and Mrs Phelps are both avid readers of science fiction (SF) and romance novels. The price of these two types of books are PSF = $10 and PR = $20, respectively. Suppose that Matilda views 1 romance novel as a perfect substitute to 1 science fiction novel, while Mrs Phelps always reads each romance novel together with 1 science fiction novel. Each reader has a monthly budget of $300. 1. Each figure below corresponds to one consumer (Figure 1 for Matilda, Figure 2 for Mrs Phelps). On each figure: . Draw the reader's budget constraint BC. . Plot the optimal consumption point (M for Matilda, P for Mrs Phelps). . Draw the indifference curve IC that is consistent with the optimal choice. SF SF 60 60 50 50 40 40 30 30 20 20 10 10 0 10 20 30 40 50 60 Romance) 10 20 30 40 50 60 Romance Figure 1: Matilda (M) Figure 2: Mrs Phelps (P) What is Matilda's new optimal consumption is of romance and science fiction novels? What is Mrs Phelps' new optimal consumption is of romance and science fiction novels? 2. Suppose all romance novels are marked down to $5 each. On each figure above: Homework 1: Short Answer Question Homework 1 N . Draw the new reader's budget constraint BC". Label all intercepts. . Plot the new optimal consumption point (M' for Matilda, P' for Mrs Phelps). Label all coordinates. . Draw the new indifference curve IC" that is consistent with the new optimal choice. Label all intercepts. What is Matilda's new optimal consumption is of romance and science fiction novels? What is Mrs Phelps' new optimal consumption is of romance and science fiction novels? 3. Describe the income and substitution effects of the decrease in PR: . For Matilda: . For Mrs Phelps: 4. Let's assume that Matilda and Mrs Phelps are the only consumers in the market for romance novels. Between the two prices, is market demand for romance novels elastic, inelastic, or unit-elastic? Explain