Find the area of the triangle.

27

Step-by-step explanation:

I added 6 and 3 and got 9 for the base.

Then I multiplied 9 to 4, and got 54.

Then, I divided 54 and 2.

The Final Answer is 27.

(Hope this helps and it's not wrong...)

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper