Question

Plz, help me thank you so much!!!!

Answer 1

Explanation:

19, 16, 13, 10, ...

a1 = 19

d = 16-19 = -3

the formula => an = a1 + (n-1)d

=> an = 19 + (n-1)(-3)

= 19 -3n +3

=> an = 22 - 3n or an = -3n +22