PLS HELP ASAP IM FAILING MATH

Hello! Since f(a) = 5a + 12, you need to substitute the a values into the equation.

For example, 1:
1. a = 6; you will substitute the a value for 6.
f(a) = 5a + 12
f(a) = 5(6) + 12
f(a) = 30 + 12
f(a) = 42

Do the same for the other ones. This will help you not fail math.

That’d be 9 years or something

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?