how do i do thisss? #7 plzzzzz

Answer:
A = 143.1 in^2
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
But we are given the diameter
r = d/2 = 13.5 /2 = 6.75
A = pi (6.75)^2
We can use 3.14 for pi
A = (3.14) (6.75)^2
A =143.06625 in^2
To the nearest tenth
A = 143.1 in^2