$2.$ Calculate all values of X to the correct significant figures$\mathrm{.}3.$ You are given a $25\mathrm{.}2$g gold sample $($and you are also given two armed guards to help you to remember to give it back when done$).$ If you placed it in a graduated cylinder containing $41\mathrm{.}2$ ml of water, what will you determine for a final total volume?$4.$ You weight your sample and determine it weighs $71\mathrm{.}8$ grams. You put the sample into $15\mathrm{.}6$ mL of water and the total volume rises to $22\mathrm{.}4$ ml$.$ What metal do you have?