With significant figures *awarding brainest answer* asap 1) 0.0695712 to 1 significant figure 2)89972 to 2 significant figures 3)0.004198223 to the 3 significant figures

1) 0.07 zeros only matter if there is a non-zero digit, as well as the decimal to the left of it
2)90,000 it would have been 89000 if the 972 had been an 872
3).00420 must include the last zero, it is considered significant because of the reason in number one

You must find the surface of the block therefore 98187 dived by 5628 = 583m squared