Agroup of 20 friends were going on a picnic 7 were playing basketball 5 were having snacks. if two were doing both what is the probability of picking a friend playing basketball?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Pls the last one and it has to be like number 6

Officer brimberry wrote 32 tickets for traffic violations last week, but only 4 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.