the response is 17.5 units.
No. 16.454 contains an extra digit at the end. If that final 4 were a 0, the two numbers would be equal.
It begins at 1.2 feet. In mathematics, dilation implies resizing, thus I will provide both possible results. Confirm with your teacher the expectation of the question. For enlargement, 1.2 * 2.5 equals 3, and for reduction, 1.2 divided by 2.5 equals 0.48.