What’s the correct answer

Answer:
About 5.18
Step-by-step explanation:
1) You must first simplify what is within the fraction:
3(1.2)^3
2) Next, you have to work with the exponent:
Do (1.2)^3, also written as 1.2*1.2*1.2 = 1.728
3) Finally you multiply by the 3:
3(1.728) = 5.184 → This simplifies to 5.18