Please help will give 10 pts

Answer:
C. 98.0%
Step-by-step explanation:
If t represents 35 days, then in order to find the daily decay rate we will have to input 1/35 as the value of t.
100(0.5)^[tex]\frac{1}{35}[/tex] = 98.039
The daily decay rate is 98.0%