Answer: TRUE!
Variables ARE letters used in place of numbers absolutely
It looks like they're multiplied, then you can simply add the exponents,
b⁸ * b⁴ = b⁸⁺⁴ = b¹²
remember, b⁸=b*b*b*b*b*b*b*b and b⁴=b*b*b*b
so b⁸ * b⁴ = b*b*b*b*b*b*b*b * b*b*b*b = b¹²
Answer:
-4
Step-by-step explanation:
g(2) means x=2

19 comes next in the series, followed by two 21s.