A = 6
tn = a + (n - 1)d
t4 = 6 + 3d = 12
3d = 12 - 6 = 6
d = 6/3 = 2
f(n + 1) = f(n) + 2
Answer:
120
Step-by-step explanation:
180 subtract 60 equals 120
If e is between them, then the distances DE and EF add to the total, DF. So the answer is just 27 + 34 which is 61, A
I think 10,000 not sure though
