Answer:
y= 7^-t
Step-by-step explanation:
Equation for exponential decay:
An equation represents exponential decay if a term between 0 and 1 is elevated to the independent variable.
In this question:
First option 4 is elevated, so not exponential decay.
Second option:

, thus, the second option represents exponential decay.
Answer:
if you are asking for a math equation then 2+4+5=11
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
-(-17)= 17
Ummm I need more infooooo...