Round the following numbers to two signifcant fgures: (a) 12.91, (b) 0.214, (c XXXXXXXXXX, (d) 191.9, (e XXXXXXXXXX. The mass of a beaker was measured using a balance as 25.6 g. Water with a mass of...

Round the following numbers to two signifcant fgures: (a) 12.91, (b) 0.214, (c) 0.01391, (d) 191.9, (e) 0.0013499.

The mass of a beaker was measured using a balance as 25.6 g. Water with a mass of 6.02 g was added to the beaker. What is the total mass to the appropriate number of signifcant fgures?