1. Opinion: Florida new store - Tattoo, is considering mobile ads and believes this will grow his profits by 5%. Substantiation: "Sales of mobile ads are expanding rapidly, but consumer attitudes to them may not be changing quickly" Billy Hulkower, Senior Technology Analyst The Internet Advertising Bureau reported that mobile ad sales rose by 145% in the first half of 2022, as compared to the first half of 2021. Sales tallied $3 billion for the first half of 2023, up from $1.2 billion in the first half of 2015, accounting for 15% of all Internet ad sales. Questions: (answer) 1a. Why doesn't this substantiation work? 1b. What back up information would be convincing?

Fig: 1