Math
posted by
Len
.
Robert feeds his dog 1 lb 4 oz of dog food a day. How long will a 40 pound bag last ?

Math 
Ms. Sue
http://www.jiskha.com/display.cgi?id=1336492764

Math 
martin
3x2x4

Math 
stranger
There are 16 oz in 1 lb.
So, 1 lb 4 oz = (1 * 16) + 4 = 20 oz
 Each day, Robert feeds his dog 20 oz
If the bag is 40 lbs, and 1 lb = 16 oz
 The bag is 640 oz
640 oz of food, divided by 20 oz servings
 It will last 32 days.