Armani is hanging a picture. he wants to center it horizontally on the wall. the picture is 18 1/4 inches long, and the wall is 31 3/4 inches long. how far from the edge of the wall should he place the picture?

He should place the picture at 6.75 inches from the edge of the wall.  

Explanation

According to the below diagram, O is the center of the wall and AB is the distance of the picture from the edge of the wall.

As the length of the wall is inches or 31.75 inches , so the half length of the wall inches.

Now, the length of the picture is inches or 18.25 inches, so the half length of the picture inches.

Thus, inches

So, he should place the picture at 6.75 inches from the edge of the wall.  

45

step-by-step explanation:

to find a percentage, add a decimal in front and multiply it by the other number.

.25 times 180= 45