Answer:
The area is 
Step-by-step explanation:
I assume that the figure is a square
The area of a square is equal to

where
b is the length side of the square
In this problem we have

substitute in the formula


In this question, it is given that the diagonal of the board is 18 inches long and one side of the board is 12 inches long.
Let the other side is of length b inches .
Now we use pythagorean identity, which is

Here, a = 12 and c=18
Substituting these values, we will get

And the formula of perimeter is

Substituting the values of the two legs, we will get

Answer:
4x-5= 5 less than the product of 4 and a number. 4 (x-5)= The product of 4 and the difference of a number and 5. 4(x+5) = The product of 4 and the sum of a number and 5.
Step-by-step explanation:
I took the test online in K12 and when I reviewed it said that those are the correct answer.
The answer 0.1, 0.136, 0.652, 0.87