Answer:
C
Step-by-step explanation:
Becuase i checked it
A
y = 20(0.5^x)
x = 1, y = 20(0.5) = 10
x = 3, y = 20(0.5³) = 2.5
1) 78
2) 28
3) 74
4) 28
5) 74
6) 106
7) 74
8) 74
9) 78
10) 78