Question

ap. -3, -0.5, 2, 4.5.... find t11 and s8​

Answer 1

Step-by-step explanation:

t11= a+ (n-1)d

= -3+(11-1)(2.5)

t11 =22

s8=8/2(2(-3)+(8-1)(2.5))

=46

Answer 2

Step-by-step explanation:

answer is in the picture