Answer:
20
Explanation:
For the mean to be 21, the total of the 5 numbers must be 21*5= 105
To find what the final quiz score must be, we need to subtract the first 4 scores from 105. 105- 21- 24- 23- 17= 20
We can check this answer by finding the median of the 5 numbers now (17,20,21,24,23). The new median is 21 which means the final quiz score must be 20!
Hope this helped! :)
Answer:
9
Step-by-step explanation:

Answer:
whats the question
Step-by-step explanation:
Answer:
You would pay $2.75
Step-by-step explanation:
a dozen = 12
6.60 / 12 = $0.55
0.55 x 5 = 2.75