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Verified Answer :

MathisLif3

B
1-.97=.03
r>1=>growth
r <1=>decay
r=1=> no change

Answer:

Option b - 3% decay

Step-by-step explanation:

We have given that :  \(f(t) = 30(0.97)^t\)

To find : Rate of change

Solution : Let the rate of change is denoted by r

and the growth rate of given function is 1-r = 0.97

                                                                ⇒ r =1-0.97 = 0.03

                                                                ⇒ r= 3%

Since the growth rate is -ve therefore, there is a decay rate

The rate of change is 3% decay -Option b is correct


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