Final answer:
The length of Warren's pantry is 5 feet, found by dividing the pantry's area of 10 square feet by its width of 2 feet.
Step-by-step explanation:
The student is asking about the dimensions of Warren's pantry given the area of Warren's kitchen. The area of the pantry can be calculated since it is given that Warren's kitchen, which is 90 square feet, is 9 times larger than the pantry. To find the pantry's area, divide the kitchen's area by 9, which gives us 10 square feet (90 / 9 = 10). Since the width of the pantry is 2 feet, and we know that area is calculated by multiplying length by width, we can find the length by dividing the area by the width. Therefore, the length of the pantry is 10 square feet / 2 feet = 5 feet, which corresponds to Option A).