Write an explicit formula for this table hours: 1 2 3 4 5 tweets: 5 15 75 225 675

The explicit formula would be .

This is a geometric sequence, since we are multiplying each term by a constant to find the next term.

The explicit formula for a geometric sequence is given by 
,
where g₁ is the first term and r is the common ratio, or the number that is multiplied to get the next term.

Our first term is 5, and the common ratio is 3.

Subtracting is the opposite of adding