Answer:
n = 112
Step-by-step explanation:
an = a1 + (n - 1)*d
d = 43 - 22 = 21 Try another one to confirm
d = 85 - 64 = 21
d = 21 So we have an arithmetic sequence.
a1 = 1
an = 2332
2332 = 1 + (n - 1)*21 Subtract 1 from both sides
2332 - 1 = (n - 1)*21
2331 = (n - 1)*21 Divide by 21
2331/21 = n - 1
111 = n - 1 Add 1 to both sides
112 = n
