The cost of a concert ticket last week was $60.00. This week a concert ticket is $75.00. What is the percent increase of the ticket from last week to this week?

A.

8%
B.

15%
C.

20%
D.

25%

D. 25%

To calculate the percent increase:
($75 - $60) / $60 = $15 / $60 = 0.25 = 25%

Therefore, the concert ticket price increased by 25% from last week to this week.