the mass a bag of oranges is 5 kg.

the mass a bag of tomatoes is 7 kg

what is their mass altogether?

the mass of the book is 15 kg

the mass of the newspaper is 4 kg

what is their total mass?

Kim and Jen has a total mass of 30 kg.

Kim mass is 12 kg. what is Jen mass?

The total mass of a bag of books 7 kg. the mass of the bag is 1 kg what is the mass of the books?