Amanda sells 4 tickets to 5 friends so she sells 4 * 5 = <<4*5=20>>20 tickets on her first day
On her second day, she sells 32 tickets for a total of 20 + 32 = <<32+20=52>>52 Tickets so far
Having 80 tickets as the goal, she needs to sell 80 - 52 = <<80-52=28>>28 Tickets on her last day
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