The radius of is . The radius of is greater than the radius of . The radius of is greater than the radius of . The radius of is less than the radius of . What is the area of each​ circle? How many times greater than the area of is the area of ​? The area of is
nothing .
​(Simplify your answer. Type an exact answer in terms of ​.)

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !