QUESTION 20 With its new global mobile phone service, Ultra Mobile offers the following price schedule: Your first 10 minutes each day cost 25 cents per minute All minutes after that are just 10 cents per minute There are no additional charges, and no contract to sign or fixed monthly fees. If Peter's demand for global phone minutes is P = 20 - 4Q, where P is in cents per minute and Q is in minutes per day, what is Peter's daily consumer surplus? O 2.5 O 12.5 O 25 O 50