If r(x) equal 3x -1 and s(x) equal 2x + 1 which expression is equivalent to (r/s) {6}

Yes i could be the length of the triangle

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?