Answer:
The dog is 20 inches tall now.
Step-by-step explanation:
Given that:
Height of dog when it was a puppy =
inches
Height of dos now =
than previous height
It means that we will add this height in the height of dog when it was a puppy.
Height of dog now = 
Height of dog = 
Height of dog = 20 inches
Hence,
The dog is 20 inches tall now.
Think it should just be A B D C not sure though, try it
I think that 10 students were reading during study time.
Answer:
5/10= 1/2 4/12=1/3
3/9= 1/3
Step-by-step explanation:
Given:
The equation is

To find:
The error and correct solution.
Solution:
We have,

Add 16 on both sides.


Divide both sides by -5.


Third step is incorrect because he divide the equation by 5 instead of -5.
Therefore, the correct solution is
.