Answer:
y= 4
Step-by-step explanation:
Okay so this is inverse operations.
You have to move the 2y over underneath the 6y and subtract them, you should get 4y. Your problem should now look like this. 4y-20=-4
Now you need to more the +20 over underneath the -4 and add them. Your problem should now look like this. 4y= 16
You now divide 4 into 16 which will give you 4
So y= 4
Have a good day!
-2ab I'm not positive but I think
Option D:
The expression equivalent to the given expression is 25.
Solution:
The image of the question is attached below.
Given expression:

To find which expression is equivalent to the given expression:

125 can be written as 5 × 5 × 5 = 5³

Using the exponent rule: 


Using the exponent rule: 

= 5²
= 25

The expression equivalent to the given expression is 25.
Option D is the correct answer.