Well the result shown in C19 will show the sum of all cells from C5 to C18:
ie: C5 + C6+ C7+ C8+ C9+ C10+ C11+ C12+ C13+ C14+ C15+ C16+ C17+ C18
:)
Answer:
Jack has to be very calm and try his best to present himself in an outward way and think about the fact that by the end of the night no one will remember that he messed up, I feel like he'll be okay :)