Respuesta :
If the puppy gained 3/8 lb each week for 4 weeks, then all together he gained...
3/8 * 4 = 12/8 = 1 1/2 lb
(Hope that's what you were asking... :) )
3/8 * 4 = 12/8 = 1 1/2 lb
(Hope that's what you were asking... :) )