
Since both sides have the same base (4), we can add the exponents


subtract 5 from both sides:

20÷10= 2
50÷10= 5
ratio is2:5
Answer:
8
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Because in D, there no x-value that are repeating in the list.
For example A, the value 8 and -8 are being repeated twice, which makes this relation not a fuction.