Carry out these operations as if they were calcula-
tions of experimental results, and express each an-
swer in the correct units and with the correct number
of significant figures:

(a) 5.6792 m + 0.6 m + 4.33 m

(b) 3.70 g - 2.9133 g

(c) 4.51 cm x 3.6666 cm

(d) (3 × 10¹ g + 6.827 g)/(0.043 cm³ – 0.021 cm³)