Solve - matrix please help it’s for my final

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?

8,400-6,400=xx/6,400anyways the percent increase is 31.25% or 0.3125 you can round if you can