Bob is framing a rectangular picture 9 in long and 6 in wide. If the framing material costs $1.50 per inch, what will be the total cost of the frame?

Perimeter = 2L + 2W

P = 2(9) + 2(6)

P = ?

Multiply that answer by $1.50

I get $45.00 is this correct?

Right.

To find the total cost of the frame, we need to calculate the perimeter of the rectangular picture and then multiply it by the cost of framing material per inch.

The perimeter of a rectangle is calculated by adding the lengths of all four sides. In this case, since we know the length is 9 inches and the width is 6 inches, we can calculate the perimeter as follows:

Perimeter = 2 * (length + width)
= 2 * (9 + 6)
= 2 * 15
= 30 inches

Now, we multiply the perimeter by the cost of framing material per inch to find the total cost of the frame:

Total cost = Perimeter * Cost per inch
= 30 * $1.50
= $45

Therefore, the total cost of the frame will be $45.