Answer: Third option is correct.
Step-by-step explanation:
Since we have given that
1800(1.2).
We need to find the equivalent form:
we can rewrite 1.2 as [tex]\dfrac{12}{10}[/tex]
After find the lowest term which is [tex]\dfrac{6}{5}[/tex]
[tex]1800(1.2)\\\\=18000(\dfrac{12}{10})\\\\=18000(\dfrac{6}{5})[/tex]
Hence, it is equivalent to [tex]18000(\dfrac{6}{5})[/tex]
Thus, Third option is correct.