Answer: 32
Explanation:
The scale factor is 2, which means you need to multiply the length and width by 2. So, 5 will become 10 and 3 will become 6, and you can find the perimeter by using 2L+2R, which is 32.
Alternatively...
The perimeter of the original figure is 16, and since the scale factor is 2, you multiply the perimeter by 2 and 16x2=32.