Answer:
C
Step-by-step explanation:
See how many pens he has in total from the beginning
21x13 = 273
Then subtract 45 from 273 to see how many he gave up
273-45=228
Answer:
8/15
Step-by-step explanation:
4/5 times 2/3
The best way is to completely randomize the people you pick, and get a large array of diverse people. People of different ages, sizes, living in different places. You can do this by gathering all of the people’s phone numbers, randomizing them, then calling quite a few. Make sure you get many people. This way, it will be unbiased.
Hope this helps! Comment if you have any questions or concerns! :)
Mrs.Brown will receive $19.80 back.