Answer:
See Image below:)
Step-by-step explanation:
You can use the app photo math, you just take a picture of the question and it shows you the steps.
Answer:

Step-by-step explanation:
The equation to solve is:

To get rid of the "square", we need to take square root of both sides:

Then we use algebra to find the value(s) of x. Remember, when we take square root, we have to add up a "+-" (on the right side). Shown below:

So these are 2 answers for x.
Answer: 18
Step-by-step explanation:
The circumference formula is C= 2
r
r being the radius, so you can just plug in.
C= 2
(9) = 18
64/4 is 16 if that's what you meant.
Pretty sure it’s 4 idk tho this is a tough one. Hahahaha