Answer:
20.875
Step-by-step explanation:
Mean is to add up the scores then divide by the number so 20 + 25 + 19 + 18 + 21 + 24 + 15 + 25 which is 167 then divide by 8 which is 20.875
The answer is 29
First you do 60/10 which is 6
After you do 3 x 3 x 3 which is 27.
Then you subtract 27-6 which is 21.
Last you do 21+8 and you get 29
Multiply 2 1/4, 1 3/5 and 2 1/3 together! It would be easier to turn these mixed fractions into improper fractions.