What does 20-12k gold mean?

Explain how to determine whether a set of values in a table is independent or dependent variable.? Five hundred three thousands in scientific notation? What is twelve plus two squared? What is the square root of potato? What is 36 in into ft? If you have a spinner numbered 1 to 5 What is the probability of spinning a 2? What is the superlative of easily? What is the square root located between 8 and 9? What is half of 242? What number is halfway between 47 and 55? What is 100000000 multiplied by 5.6? If a train is traveling west at 60 km per hour and another train is traveling east at 100 km per hour they are 29 km away from each other headed towards each other than how tall is Imhotep? What is 15 over 60 in simplest form? How many significant figures are there in 0.0028? How high is a stack of 2000 one hundred dollar bills? What is 213502 rounded to the greatest place value? 72 multiplied by 16? A train travels 1 mile in 3 minutes 20 seconds At this rate how many miles will the train travel in 1 hour? How many times does 18 go into 36? Can a permutation be made with negative numbers?