Answer:
Step-by-step explanation:
as you see the top "moves" like
2,4,6,8, and next will be 10
the bottom adds 3 to the previos answer
5,8,11,14, next will be 15
5th card is 10/15
3
2 plus 1 is 3
f^-1 (x)=1/2x+5
y=2x-10
x=2y-10
2y=x+10
y=1/2x+10/2
y=1/2x+5
Undefined
