Answer:
A. 1.2 x 10⁴
Step-by-step explanation:
The number with the largest power of ten will be the biggest. In this case, it is A as 4 is > 3 and 4 > -3. If two numbers had the same power of ten, the larger number would be the largest.
A. 1.2 x 10⁴ = 12000
B. 4.5 x 10-³ = 0.0045
C. 3.8 x 10³ = 3800
D. 7.5 x 10³ = 7500
12000 is the largest.
