Fchute lessons 1.1 - 1.2 complete the sentence 1. 300 is 10 times as much as

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

I’m stuck on this equation, anyone got the answer?

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?