I don't know anything about this question. Plz help! Part of which I can't get in the photo asks Will the price increase or decrease at 23Cents

Quiz: Quiz 3 Question 28 of 34 This quiz: 50 point(s) possible This question: 4 point(s) possible A bakery works out a demand function for its chocolate chip cookies and finds it to be q = D(x)=570-21x, where q is the quantity of cookies sold when the price per cookie, in cents, is x. Use this information to answer parts a) through f) a) Find the elasticity. b) At what price is the elasticity of demand equal to 1? (Round to the nearest cent as needed.) c) At what prices is the elasticity of demand elastic? O A. Greater than 144 B. Prices cannot be elastic in this case O C. Prices are elastic at all values O D. Less than 14 d) At what prices is the elasticity of demand inelastic? O A. Less than 14 O B. Prices are inelastic at all values O C. Greater than 14 O D. Prices cannot be inelastic in this case e) At what price is the revenue a maximum? x=e (Round to the nearest cent as needed. Use a comma to separate answ Time Ram