4. In the following, how many digits should be in the solution to have the proper number of sig figs? DO NOT SOLVE.
a. (797.6 m) (54 m)

b. (851 cm) (24.3 cm)

C. 1075 kg - 15 L

d. 93.4 m - 10.975 m

e. (6.02 x 103 m)(12.00 m)(1.660 x 10-24 m)

f. (453.6 m)(9.050 x 109 m)(239.1 m)