Respuesta :

Answer:

27

Step-by-step explanation:

155 , 152 , 149

term rule = n- 3

30th term

n-3

substitute n for 30

30-3=27

Answer:

68

Step-by-step explanation:

D = -3

an = a1 + (n-1)d

a30= 155 + (30-1)-3

a30 = 155 + 29(-3)

a30 = 155 + (-87)

a30 = 68