Answer:
Option D - 50÷1
Explanation:
Given : Benni wants to divide 48.6 by 0.7.
To find : In order to estimate the quotient, which is the best expression to use?
Solution :
In order to estimate i.e. an approximate calculation we round the numbers,
48.6 as tenth place is > 5 then it round completely

0.7 as tenth place is > 5 then it round completely

So the estimated expression is given by,

Therefore, option D is correct.