2x1.0079 =2.0158 has 1 sig fig because u have to use the smallest sig fig that was in the whole calculation which was 2, therefore the 2 in 2.0158 is the only sig fig
two sig figs
there are 3 sig figs. 4, 0, and 5 are the sig figs
Six
2
5 sig figs
13.00 has 4 sig figs.
61 has 2 sig figs.
There are five sig figs
There are four sig figs in 2.905.
There are three sig figs in 1.05.
There are three sig figs in 4890.
All five of them are sig figs