Answer:
4in
Explanation:
You can use a proportion: 0.5in = x
---- -----
3ft 24ft
You are trying to find x (how many inches Sally would have to draw to represent 24ft.
Step one:Cross multiply( 0.5x24=12 and 3 times x =3x) After it will look like this: 3x=12
Step two: divide on both sides (the goal here is trying to get x and the answer by itself)
You should get x=4 **And boom shock-a-locka that's the answer :D