8) Mr.kelly is super slow grading Mastery check. there is a line with 3 people in it. Every minute the line gets 2 more people. He really hopes to not to reach 15 people or else Sully will likely come in and put him on BLAST ( or something else hip kids say) a) Pick variables and define them for this situation. b) Crete an equation using you variables to model the situation c) Solve the equation to find how long it will be before Mr.Kelly has 15 people in line​