What kind of math is this
Is it radius or circumference?
Because the graph is starting high and going down, your answer is c- exponential decay
11 5/8 + 9 1/2= 21 1/8
3/4 - 2/5= 7/20
4 5/6 - 2 1/2= 2 1/3
I think these are right, I apologize if they are wrong.