The eighth term of a linear sequence is 18 and twelveth term is 26.Find the first term,common difference and 20th term

Answer 1

plz answer quick

Answer 2

18 to 26 is 4 terms with a difference of 8
... so the common difference is ... 8 / 4 = ?

the 20th term is 8 terms beyond 26 (the 12th term)
... 26 + 8 differences = ?

Answer 3

if you labeled this a math question, it might have been answered sooner