The Ulysses Corporation and the Xenophon Company are the only producers of a sophisticated type of camera. They each can engage in either a high or a low level of advertising in trade journals. The payoff matrix is as follows: Low Level High level
Low level $12 mm, $13mm $11mm, $12mm
High Level $13mm, $12 mm $12mm, $11mm

Required:
a. Will Ulysses engage in a high or low level of advertising in trade journals?
b. Will Xenophon engage in a high level of low level of advertising in trade journals?
c. is there a dominant strategy for each firm?
d. Can you please show formulas?