To find the total volume of 1.5 × 10^6 sugar cubes, you multiply the number of sugar cubes by the volume of one sugar cube.
The volume of one sugar cube is 4.9 ml, so:
\[ \text{Total volume} = 1.5 \times 10^6 \text{ cubes} \times 4.9 \text{ ml/cube} \]
Calculating this:
\[ 1.5 \times 4.9 = 7.35 \]
Now, we also multiply the powers of ten:
\[ 7.35 \times 10^6 \text{ ml} \]
Thus, the total volume of 1.5 × 10^6 sugar cubes is:
\[ 7.35 \times 10^6 \text{ ml} \]
Therefore, the correct response is:
7.35×106 ml (7.35 times 10 superscript 6 baseline ml).