Answer:
[tex]\large\boxed{\dfrac{8}{5}=1.6}[/tex]
Step-by-step explanation:
[tex]a_1=25\\\\a_2=\dfrac{2}{5}\cdot25=(2)(5)=10\\\\a_3=\dfrac{2}{5}\cdot10=(2)(2)=4\\\\a_4=\dfrac{2}{5}\cdot4=\dfrac{8}{5}=1.6[/tex]
Answer: I think it's 0 but I'm not sure. What are some of the other possibilities?
