Answer:
0.16 bags
Explanation:
Given that:
the floor of the rabbit's cage is 4 feet long and one bag of shaving covers 5² ft.
the floor of the rabbit's cage which is 4ft = 25 ft for one bag of wood shaving
to determine the amount of wood shaving Harper needs to buy to cover 4 feet of her rabbit's cage ; we have:
x bags = 4 feet
1 bag = 25 feet

x = 0.16 bags of wood shaving is needed to cover the floor of of the rabbit's cage that measures 4 feet long.