13. If an arc with measure 60° has length 5π on a circle with radius r, what is the length of a 60° arc on a circle with radius 2r? Explain.

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?

The last one bc that's a calendar