Question

Mean 60 points if all is correct, really need some help.
As its not allowing 40/5= 8 mean.

Answer 1

2^K≥40

2^5≥20

24/5 =4.75

40 books= 40/5 = 8 mean

9 2's

10 7's

13 12's

2 17's

6 22's

18+70+156+34+132= 410/40 =10.25

150+156+70=306+70=376/40 books bought = 9.4 mean

Explanation: