Step-by-step explanation:
the quotient of a number and 3 is 6
Solution,
Let the number be x, then

3/4 ÷ 1/2
3/4 × 2/1
(3 × 2)/(4 × 1)
6/4
3/2
Since Maria bought 16 books, and b represents the number Dale had; you can divide 16 by 8 to get the number b of books Dale has. 16/8=2
Hope this helped!