Answer:
2.45x10^3
3.13x10^1
4.987
1.157x10^-4
Explanation:
I have assumed that 1.1.57 = 1.157 and the same with the second and third numbers.
3.13 * 10^1 = 31.3
1.157 * 10^-4 = 0.0001157
2.45 * 10^3 = 2450.
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