Last year, I bought an average of 5 CDs a month. For the first 8 months of this year I bought an average of 7 CDs a month. What’s the average number of CDs a month I bought during the entire 20-month period?
A. 5.8
B. 7.2
C. 6
D. 7
E. 5

• 60+56 / 20 =5.8
• 8 years agoHelpfull: Yes(0) No(0)