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

Answer:
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
Step-by-step explanation: