Rounding to Significant Figures

Question 1:

Round to 1 s.f. 7.2948

7

Question 2:

Round to 2 s.f. 0.0040006

0.004

Question 3:

Round to 2 s.f. 0.076121

0.076

Question 4:

Round to 3 s.f. 0.85517

0.855

Question 5:

Round to 1 s.f. 0.080459

0.08

Question 6:

Round to 3 s.f. 112.38

112