The sum of the ages of Mr and Mrs Smith and their children is 100 In 5 years’ time the sum of their ages will be 130
How many children do Mr and Mrs Smith have?

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?

I’m not gonna do that