The number 2799.7598 has 8 significant figures. All the digits, including the zeroes that occur between non-zero digits, are considered significant. Therefore, every digit in this number contributes to the total count of significant figures.
there are 3 sig figs. 4, 0, and 5 are the sig figs
5 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
There are two sig figs in 3700000.
There are two sig figs in 290.
There are five sig figs in 4.1275.
6.002 has four sig figs.