Modern currency i. e. Money is a medium of exchange used to exchange for services.
Any item that can be traded for another item was done in older days with the name of barter system.
Answer:
Step-by-step explanation:
Common ratio r = a₂/a₁ = -4/(½) = -8
nth term = a₁rⁿ⁻¹ = ½(-8)ⁿ⁻¹
This can be further simplified to (-1)ⁿ⁻¹2³ⁿ⁻⁴
G(x) = 3 (2)^x
g(3) = 3 (2)^3
g(3) = 3(8)
g(3) = 24