explain how you know the number of decimal places that should be in the product of a number with decimal places to the hundreths multiplied by a number with decimal places to the tenths

Idon’t know what the answer is i wish i could

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?