Answer:
The cost of insurance change 29,6% between 2015 and 2018.
Step-by-step explanation:
We can start by defining C as the cost of insurance in 2015.
Then, we know it rose 13% between 2015 and 2016:
[tex]C_{16}=(1+0.13)*C=1.13C[/tex]
It then dropped by 2% between 2016 and 2017:
[tex]C_{17}=(1-0.02)*C_{16}=0.98*(1.13C)=1.1074C[/tex]
And then it increases by 17% between 2017 and 2018:
[tex]C_{18}=1.17C_{17}=1.17*1.1074C=1.295658C[/tex]
We can conclude the cost of insurance change 29,6% between 2015 and 2018.
