Help me please!! What is the difference between the area of the larger circle and the area of the smaller circle? Leave your answer in terms of pi.

Answer:
128 π
Step-by-step explanation:
A= π*r^2
Larger Circle = X
Smaller Circle = Y
In terms of π :
Area of x : 324 π
Area of y: 196 π
324 - 196 = 128π