Posted by keria on .
a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?

science 
bobpursley,
mass= 45lbs* .454kg/lb
Posted by keria on .
a mr wikinson backpack weighs 45 pounds if there are 453.7grams in one pound what is the mass of his backpack?
mass= 45lbs* .454kg/lb