Grandpa Ernie is shrinking! Over the past 4years, his height decreased by a total of 2.4 cm. It decreased by the same amount each year.
What was the change in Grandpa Ernie’s height each year?

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?