Answer:
R^{2} + S^{2} = T^{2}
Step-by-step explanation:
the pythagorean theorem
56
y=x-3
Step-by-step explanation
If use the area of the frame the area of the photo will be included
Area of frame = (22 + 2 x) * (20 + 2 x) = A
440 + 2 x ( 20 + 22) + 4 x^2 = A
A = 4 x^2 + 84 X + 440
