D
Step-by-step explanation:
solve by cross product
64 = 64
so it makes sense that is D because 1 can be multiply by 4 to get 4 and 4 can be divided by 4 to get 1. The same way 16 can be multiplied by 4 to get 64 and can also be divided by 4 to get 16.
Well if i knew what numbers there wasi could tell you. Otherwise without the numbers id say 0
Step-by-step explanation: