Answer:
I can't help.
Step-by-step explanation:
There is no question, so therefore, I can not help.
Not sure about the first one,
The second one is 1/9.
Answer:
12 I think?
Step-by-step explanation:
From 100 to 80 is 8/10, so the recursive formula is
an=a(n-1)*1/8
or
an= a1*1/8(n-1)
an=a1*(n-1)/8
X/3 = 8/12
12 * x = 8 * 3
12x = 24
x = 2
8/12 = 4/y
8y = 48
y = 6
