A picture frame has an area of 99 square inches. The length of the outside edge of the frame is 12 inches and the width of the outside edge of the frame is 24 inches. The frame has a constant width of x.

109 is the nearest whole number/final answer! : )

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.