finish data tables please

Table 1. Analyzing Copper Wire Samples "Solutions 1a, 1b, and 1c") (*) since the masses and transmittances are determined to 3 significant figures, perform all intermediate calculations with at least 4 significant figures, and finally, round of the Ratio ave to 3 significant figures. (1) The lab will not be graded unless the identification number of the unknown is recorded in Table 2. (2) Since the mass and transmittance are determined to 3sig. fig. perform all intermediate calculations with at least 4sig. fig. and finally, round off the average percent by mass to 3 sig. figs