You deposit $30 in a credit union savings club account. You are getting 0.7% monthly (8.4% annuall) interest on the account. Write an explicit rule for the nth month?

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?