Y=-4/2x-3 that should be a correct answer
Change 1/4 to a decimal is an exponent by 4 and the answer would be 0.0039
Exponential decay is a very common process especially when we are talking about radioactive materials. So, there is already a common formula for this type of behavior which is written below:
A = Pe^-rt
where
A is the amount left after time t
P is the initial amount at t=0
r is the rate
Substituting the values,
A = (780 g)(e^-0.163*16)
A = 57.5 g
7 to 9 I believe if you take 4 and 7 and make them more it schools be that
