Answer:
Step-by-step explanation:
..
He put 3 in the bag because 12 divided by 4 is 3
Answer:
In decimal, I got 9.191. Cannot help on the fraction part tho. Sorry.
Answer:
330
Step-by-step explanation:
Given there are 11 books to be selected, and a final 7 has been selected. To find the number of possible ways, we calculate the selection combination;

Hence, the books can be selected in 330 different ways.