Answer:
The correct answer for which number is the greatest is A 3.4 x 10^-2
Step-by-step explanation:
A: 3.4*10^-2= 0.034
B: 4.3*10^-3=0.0043
C: 5.2*10^-4=0.00052
D: 6.1*10^-4=0.00061
A is the answer because it has less zeroes meaning its closer to being a whole number and is closer. The other answer choices have multiple zeroes, so it is getting farther away.
Hope this helps please mark brainliest :)
