Answer:
1)
has 15% decay rate.
2)
has 5% growth rate.
3)
has 50% decay rate.
4)
has 50% growth rate.
5)
has 15% growth rate.
Step-by-step explanation:
Given : Exponential inequality
To find : Match each exponential inequality to its percent rate of change.
Solution :
The exponential function is defined as
,
where, a is the original amount, r is the amount of growth or decay, and x is the number of time periods.
If r is +ve then it is growth rate
If r is -ve then it is decay rate
1) 
Where, a=5
1+r=0.85
r=-0.15
r=-15%
Therefore,
has 15% decay rate.
2) 
Where, a=50
1+r=1.05
r=0.05
r=5%
Therefore,
has 5% growth rate.
3) 
Where, a=150
1+r=0.50
r=-0.5
r=-50%
Therefore,
has 50% decay rate.
4) 
Where, a=15
1+r=1.50
r=0.5
r=50%
Therefore,
has 50% growth rate.
5) 
Where, a=50
1+r=1.15
r=0.15
r=15%
Therefore,
has 15% growth rate.