If i use 0.0395 kg of water to dissolve 0.0189 kg of salt, what is the mass percent of this solution?

Enriched uranium is a type of uranium in which the percent composition of uranium-235 has been increased through the process of isotope separation. Natural uranium is 99.284% 238U isotope, with 235U only constituting about 0.711% of its mass. ... The term oralloy is still occasionally used to refer to enriched uranium. Hope this helps