Why were galleons better than longships for long voyages?

They had more room for water and food.

Explanation: they were bigger, they could carry more men and had more space for precious cargo

Galleons had more room for water and food than longships had. Hope this helps :)

would it be plagiarism to copy and paste off of here? ?

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.