Holly makes very high-quality skateboards. When she heard that her friend Martinez was spending four months in Nairobi, Kenya, she got an idea. There are over a million and a half people in Nairobi, Holly said. What a great place to sell my skateboards! She asked Martinez to research the market for her while he was there. Martinez asked Holly to develop a list of questions for him to research. Make the list of key questions that Holly needs answers to.