Answer:
A. 42÷6
Explanation:
If Mandi has total number of 42 stamps and she needs to put 6 stamps on each page, to find the number of pages she needs to stamp, we will use the following relationship;
Since there are 6stamps per page, i.e 6stamps = 1page
42stamps = x number of pages
where x is unknown.
Cross multiplying to get 'x' we have;
42stamps × 1page = 6stamps × x pages
x pages = 42stamps × 1page/6stamps
x pages = 42/6
The expression to find the number of pages for 42stamps needed will therefore be 42÷6