Paula's dog : Carolos' dog = 3 : 1
The total number of ratio units is 3+1 = 4, so each one stands for (48 lb)/4 = 12 lb.
Paula's dog weighs 3·12 lb = 36 lb.
Carlos' dog weighs 1·12 lb = 12 lb.
[ Answer ]
M = <em><u>15</u></em>
4 * 0 = <u><em>0</em></u>
[ Explanation ]
60 / 4 = 15
15 * 4 = 60
4 * 0 = 0
<> Eclipsed <>
4 x 6 = 24 six times four is twenty four