Write an explicit formula for aⁿ , the nth term of the sequence 175,35,7,….

a) aⁿ = 175×(1/5)^(n-1)
d) aⁿ = 175×5^-(n-1)
d) aⁿ = 175×5^(n+1)
d) aⁿ = 175×(1/5)^(n+1)