Respuesta :

Answer:

t(n) = 19 - 2n

Step-by-step explanation:

Using the formula t(n) = a + (n-1)d

a = first term

n = nth term

d = common difference

t(n) = 17 + (n-1)(-2)

t(n) = 17 + (-2n + 2)

t(n) = 19 - 2n