Answer:
82
Step-by-step explanation:
As x goes from 1 to 2, y increases by 10 from 12 to 22
As x goes from 2 to 3, y increases by 10 from 22 to 32
We increase by 10 each time x increases by 1
The formula for an arithmetic sequence is
an = a1+d(n-1)
where a1 is the first term which is 12
d is the common difference or the number we add each time which is 10
n is the term we are looking for which is 8
a8 = 12 +10 (8-1)
=12 + 10 *7
12+70
82
