1- In the following cases, calculate the reverse demand and consumer surplus at price p = 10 dollars, as well as the graphical representation. a) D(p) = 100 p. b) D(p) = 100 bp, where b is a positive constant. c) D(p) = 100 0.25p. d) D(p) = a p, where a is a positive constant. 2- The price goes from 10 to 13 dollars