Brett made a scale drawing of a rectangular room in his house.

the length of the actual room is 12.8 ft. the scale used to make the drawing was .25 = 1 ft. what is the length, in inches, of the room on the drawing?

Just multiply your length by the scaling factor (.25) then multiply by 12 in./ft to get your total (=12.8 ft x .25 x 12 in./ft)

.25in/1ft * 12.8ft = 3.2 in

To find the length of the room on the drawing, you need to multiply the actual length of the room by the scale factor.

Given:
Actual length of the room = 12.8 ft
Scale factor = 0.25 in = 1 ft

To find the length on the drawing, you can multiply the actual length by the scale factor:

Length on drawing = Actual length x Scale factor

Length on drawing = 12.8 ft x 0.25 in/ft

To get the length in inches, multiply the actual length by the scale factor of 0.25 inches per foot:

Length on drawing = 12.8 ft x 0.25 in/ft

Length on drawing = 3.2 inches

Therefore, the length of the room on the drawing is 3.2 inches.