Answer:
Step-by-step explanation:
You
1157 oz or 72.3125 lbs
I converted everything from pounds to ounces then added everything together.
51 lbs = 816 oz
21 lbs = 336 oz + 5 oz = 341 oz
816 oz + 341 oz = 1157 oz
1157 oz = 72.3125 lbs