Answer:
20.
Step-by-step explanation:
You plug two into the exponent with the base two

The common difference equals:
10 (as 14-4=10, 24-14=10…)
The explicit formula of this sequence is:
Because Tn=4+(n-1)•10
T1=4+(1-1)•10=4
T2=4+(2-1)•10=14
.
.
.
Therefore T8=4+(8-1)•10=74
So the answer is the second option:)
I believe a is the second and fourth options and b is the first and third
Answer:
Isosceles
Step-by-step explanation:
Hope this helps you