The sides of a triangle have lengths s, s + 4, and 3s. which expression represents the perimeter 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?

sorey ik so sorey i need and need to answer a few