40s+(2b)s+200=. Substitute s and b
40•8+(2•12)•8+200=.
Calculate consider order of operations
320+192+200=712 books
I think that induction is based on making conclusions based on previous examples such as "3,5,7 are primes, so every odd integer. Deduction it's based on logical reasoning other than examples
10(4x-1) is the answer to your question my friend