It’s a frequency table, you find the middle number from the prices of mail received and you would multiply it. Not sure what with but if you search on Google Frequency tables there should be a good explanation.
Hope this helped you!
7/9 = 0.77777778
honestly i just googled this
Answer:1.5
Step-by-step explanation:
Answer:
(-20,0) (0,-4)
C
common sense.
