It should be 21 20. Sorry if I got it wrong
Answer:
B
Step-by-step explanation:
The probability of obtaining a 3 is
P(3) = 
Then after 30 spins the predicted number of times it should land on 3 is
30 ×
= 5
Answer: for the multiple choice question, its the first one. Then for number of friends it goes, 5,10,15,20 and the cost goes 100,200,300,400. hope this helped!!! xoxo