Wouldnt it be 21 idk dont pay attention to me lol
7 = r^1/2 is the same as saying 7 = square root of r. So, to get rid of the square root sign on the r, you need to square it, and when you do something to one side of the equation, you have to do the same to the other side. So after squaring both sides, you get 49 = r.
246. (it says my answer is to short but so i have to type useless stuff anyways the answer is 246 lol have a nice day!)
Answer:
7/21
Step-by-step explanation:
First, move like terms on one side. Next, add them and divide. See the attachment for solution.
