This graph shows a proportional relationship. What is the constant of proportionality? Enter your answer as a ratio in simplified form in the box.
I think its r=I+7 because that would be the equation
The area of the floor in the room would be 7,234.56 feet. This is found by multiplying 3.14 by the radius (48) squared, or (3.14)(48)^2=7,234.56.