What does slv10k mean on a ring?

What is 2 thirds plus 5 sixths? If you were born in 1820 and you died in 1913 how old would you be? Write 55 decimeters as meters.? What is another name for a C sharp? Find dimension for a barn height 32 ft and you need a lenght for a scale of 116? What is 300 divided by 132 simplified? What is 20 divided by 14 as a fraction? How do you convert 15 feet x 10feetinto sq meters? What is 31 divided by 8? Which place is the 4 in 815.604? Which method of prediction was better testing the weight of the cube in your hand or comparing the density of the cube to the density of water? One hour is what percent of one week? Which shape has rotational symmetry? What is 0.00436 in standard form? How did Felix Klein die? How many twelfths make a whole? What is 1.8 rounded to the nearest hundredth place? How many times dose 2 go into 36? 3.27 in fraction form? What are some decimals between 0 and 1?