Question

Can someone please help me with these three questions and explain

Answer 1

Explanation:

`an = a1 + (n - 1)d`

Question 8)

2,8,14

d=a2-a1

d=8-2=6

a77= 2+ (76)*6

a77= 2+456=458

a77= 458

Question 9)

-12,-17,-22

d= -17+12= -5

a82= -12+ (81)*(-5)= -12-405= 417

a82= 417

Question 10)

9,13,17

d= 13-9= 4

a49= 9+ (48)*4= 201

a49= 201