A number decreases from 25 to 8, what is the percent of decrease?

68%

Step-by-step explanation:

25-8=17

17/25=0.68

68%

Hope this helped :)

8 is a 68% decrease of 25.

A set containing 10 elements can have subsets which will contain 1 element, 3 elements, 5 elements, 7 elements, and 9 elements. The numbers enumerated are all odd numbers. Counting, we can conclude that a set containing 10 elements will have 5 subsets which will contain odd number of elements.