I am in first year university so please keep answers to that standard. Thanks

Question I (10 points) If a publisher were to give away specimens of its latest best-seller, the demand would be 100,000 books. The marginal demand 11-9 for the book is ~20]; at a price: of p dollars. dp a) Determine the demand function for this book. (7 points) (2) Determine the price at which the demand drops to zero. (3 points) Question 2 (10 points) The legal team retained to handle the numerous lawsuits brought against a company by its disgruntled clients may have to be expanded. The marginal monthly cost to maintain a team of lawyers is estimated by the following function : 3 C ' (x) z (x 2)2 [8 (x ~ 2)3 F thousand dollars per additional lawyer; Determine, to the nearest thousand, the total monthly cost if the team were to increase from two to four retained lawyers. Question 3 (ISpoints) A consultant estimates that the total weekly computer usage by the company employees to be: I e; It w(t)=620+'900 0 3:520 3 + eZ where t is time in weeks since January 1 of this year. Determine the total computer usage during the rst 14 weeks of the year