Answer
a, $6\times10^{3}$
b, $6.4\times10^{2}$
c, $2$
d, $223$
Work Step by Step
When determining the correct number of significant figures in the result of multiplication and division calculations, The result of a multiplication or division should carry the same number of significant figures as the factor with the least number of significant figures
a, $89.3\times77.0\times0.08$
$550.088$
$5.50088\times10^{2}$
$6\times10^{3}$
b, $(5.01\times10^{5}$) $\div$ $(7.8\times10^{2})$
$642.307692$
$6.4\times10^{2}$
c,$4.005\times74\times0.007$
$2.07459$
$2$
d,$453$ $\div$ $2.031$
$223.042836$
$223$
