Answer:

Step-by-step explanation:
To solve, we need to take square root of both sides first:

Now we use the property of radical shown below to simplify square root of 28:
Property: 
Now, we have:

Now we take 4 to the other side and isolate x:

first answer choice is right.
Answer:
Step-by-step explanation:
7x=14
X=2
Answer: 123
They have to add up to 3 4 5 6 or 7 so it has to be that
Answer:
22/44, divide both sides by 22, then you would got 1/2