The mean number of seats on U.S. domestic flights was 102 in 2013 and increased by about 3.2 seats per year until 2018. Let n be the mean number of seats on U.S. domestic flights at t years since...

Extracted text: The mean number of seats on U.S. domestic flights was 102 in 2013 and increased by about 3.2 seats per year until 2018. Let n be the mean number of seats on U.S. domestic flights at t years since 2013. a. Find an equation of a linear model to describe the situation. b. Use the formula from part (a) to estimate in which year the mean number of seats was 115 on domestic flights. Show complete steps solving the equation and clearly state your answer in context of the problem.