Mylie's total utility from singing the same song over and over is as shown in the table below.

a. Write down her marginal utility for each repetition.

Instructions: Enter your answers as whole numbers. If you are entering any negative numbers be sure to include a negative sign (-) in front of those numbers.

Repetitions	Total utility	Marginal utility
1	60
2	100
3	80
4	30
5	-40
6	-190

b. Once Mylie's total utility begins to decrease, does each additional singing of the song hurt more than the previous one or less than the previous one?