Answer:
Third Option is the only equivalent equation :)
Explanation:
First Option: NO
16(0.5x - 4y + 32)
distribute
8x - 64y + 512
Second Option: NO
16(0.5x - 0.75 + 32)
distribute
8x - 12y + 512
Third Option: YES
16(0.5x - 0.75 + 2)
distribute
8x - 12y + 32
Fourth Option:
16(0.5x + 4y + 2)
distribute
8x + 64y + 32
hope this helps :)