Verified Answer :

Cabout 18
This is because 5.9 is closer to 6 than 5, so 6 *3.4
Next step: 3.4 is closer to 3 than 4 because it is not 3.5 or over.
6 times 3 is 18 so the answer is about 18!

Answer:

C. about 18

Step-by-step explanation:

Since, We know that,

5.9 is closer to 6,

\(5.9 \approx 6\),

And,  3.4 is closer to 3,

\(3.4 \approx 3\)

Here, the given expression,

\(5.9\times 3.4\)

\(\approx 6\times 3\)

\(\approx 18\)

Hence, the value of \(5.9\times 3.4\) is about 18.

Option C is correct.