We are told that Tenley is making a square frame for her painting. She is using 4 pieces of wood that are each 2.75 ft long.
To find the total amount of wood used in making the frame we will multiply amount of wood of each piece (2.75) by number of wood piece used to make the frame (4).
Therefore, Tenley used 11 feet of wood to make the frame.
We want to get rid of the square root sign somehow, so let's isolate that term.
Now, in order to 'undo' a root sign, we need to do the opposite to it, by squaring the term, but in order for it to remain the same, we need to square 4 as well.
Now, we can isolate the variable: , and since we can't simplify this further, our final answer becomes: