Blueprints for a new house shows june's bedroom is 12 ft by 16 ft . if the scale on the blue prints is 1/2 in =4ft what dimensions are her room on the blue prints

12 ft is 3 times 4 ft, so in scale it must be 3 times 1/2 in.
16 ft is 4 times 4 ft, so in scale it must be 4 times1/2 in.

3 times 1/2 in is 1.5 in.
4 times 1/2 in is 2 in.

On the blueprints her bedroom is 1.5 in by 2 in.

Num of plants = (original#ofplants)*(1.6)^t