<h2>
Answer:</h2>
The number of bags of manure which will fill the box completely is:
One
<h2>
Step-by-step explanation:</h2>
We know that the volume of rectangular box with length(l), width(w) and height(h) is given by:
Volume=lwh
Here we have:
l=7 feet
w=9 inches=0.75 feet
( since, 12 inch=1 feet
Hence, 1 inch=1/12 feet )
and
h=6 inches=0.5 feet
Hence, the volume of the rectangular box is:
Volume= 7×0.75×0.5
i.e.
Volume=2.625 cubic feet.
Now, the number of bags of manure that will fill the box completely is:
Ratio of volume of box to Volume of 1 bag of manure
= 2.625/2.625
=1
Hence, only one bag of manure could be fit into the box.