[填空题]
Ali bought a car forohi hzqc9w+dh ,12 r8or ia:kgwpn9a 4::ie/t;(dpkr-dp ix0 )le(c u $ 18000 . The value of the car depreciates by 10.5 % each year.
1. Find the value of the car at the end of the first year.≈
2. Find the value of the car after 4 years.≈
3. Calculate the number of years it will take for the car to be worth exactly half its original value. ≈
