Hello, I am stuck on how to solve the below problem:

According to a study, 87%of K-12 schools or districts in a country use digital content such as ebooks, audio books, and digital textbooks. Of these 87%, 13 out of 20 use digital content as part of their curriculum. Find the probability that a randomly selected school or district uses digital content and uses it as part of their curriculum.

The probability that a randomly selected school or district uses digital content and uses it as part of their curriculum is?