PLEASE HELP ME A sample of 600 grams of a radioactive substance decays according to
the function At=600e-0.036t, where t is the time in years. How much of the
substance will be left in the sample after 30 years? Round to the nearest
whole gram.

A. 0 g
B. 2947 g
C. 204 g
D. 1 g

After 30 years 204 g of the substance will be left.

Option C is correct option.

Step-by-step explanation:

The function given is:

where t is time in years.

We need to find how much of the  substance will be left in the sample after 30 years?

So, we have t= 30

Putting value of t and find value of A

So, After 30 years 204 g of the substance will be left.

Option C is correct option.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

this is false ^.^ lol