an employer had interviewed a successful job candidate n all that was left was to decide the pay. the employer offered her one of two different packages. in the first one, she would receive $100 a day. in the second she would receive 1 cent the first day, 2 cents the second day, 4 cents the third day, 8 cents the fourth day, 16 cents the fifth day and so on. which salary package should she choose?