Which values have exactly three significant figures? Select two options.

0.0230 grams

0.035 ounces

0.804 inches

3.150 liters

140 feet

0.0230 grams

0.804 inches

140 feet

Step-by-step explanation:

The significant numbers are rules for precision.

Some rule of significant numbers are:

Zeroes in the right are not significant. Non-zero numbers are significant. Zeroes to the left of the numbers are significant. Zeroes between two non-zero numbers are significant.

Thus,

0.0230 grams has 3 significant figures.

0.035 ounces has 2 significant figures.

0.804 grams has 3 significant figures.

3.150 grams has 4 significant figures.

140 grams has 3 significant figures.