The total area of the hallway is 90 feet * 7 feet = <<90*7=630>>630 square feet.
To clean the hallway, you would need 630 square feet * 1/2 ounce/square foot = <<630*1/2=315>>315 ounces of cleaning solution. Answer: \boxed{315}.
A hallway measuring 90 feet x 7 feet requires 1/2 ounce of cleaning solution per square foot. How much cleaning solution is required to clean the hallway.
1 answer