Answer:

Step-by-step explanation:
Pythagorean Theorem

Answer:
of the books in the book store are mystery fiction books.
Step-by-step explanation:
Let x represent all the books in the books store.
Then, the fraction of books that are fiction books is 
We have that;
of the fiction books are mystery books.
The fraction of the books at the bookstore that are mystery fiction books is
.
Therefore
of the books in the bookstore are mystery fiction books.
Answer: 93
Step-by-step explanation:
<span>5 n C r 3 = 10 </span><span>がんばってね</span>