Jamin wants to paint a wall in his bedroom. not only does he need to buy paint, but he also needs to buy tape to tape off all sides of the wall and the window. how many feet of painter's tape will jamin need to buy (assume no overlap)? [note: the wall and window are both rectangular.]
17.5 ft
35 ft
28 ft
21 ft

The perimeter of the walls is  6 + 6 + 8 + 8 = 28 feet.

The perimeter of the window is 2 + 2 + 1.5 + 1.5 = 7 feet.

Total = 28 + 7 = 35 feet of tape.

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.