Answer:
a1 =a1+(n-1) *d =8+(1-1)*9=8
a2 =a2+(n-1) *d =8+(2-1)*9=17
a3 = a3+(n-1) *d =8+(3-1)*9=26
Sana po makatulong :)
The answer is 278.
Step-by-step explanation:
https://www.tiger-algebra.com/drill/8,17,26,35,44,53,62,71/
a31 =a1+(n-1)*d =8+(31-1)*9 =278
