Charlie is mailing two packages. One package, labeled with an H for hornets, weighs 1kg 834g, and the other, labeled with NK for night crawlers, weighs 3kg 446g. What is the combined weight of the packages in grams?

Which statements identify what astronomers currently know and think will happen with our universe? check all that apply. the big bang produced dark energy, which accounts for some of the energy needed to expand the universe. the vastness of space may contain a type of matter known as "dark matter." the universe is currently shrinking at a rapid rate. the universe is currently expanding at an accelerating rate. the big bang theory explains all the energy and matter discovered by scientists.