George used a Venn diagram to sort shapes. Which shape belongs in both categories? Plz help !!

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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 !

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee