Find the absolute and percent relative uncertainty and express each answer with a reasonable number of significant figures.

$$\begin{gathered} \mathrm{a})9.23\left(\pm 0.03\right)+4.21\left(\pm 0.02\right)-3.26\left(\pm 0.06\right)=? \\ \mathrm{b})91.3\left(\pm 1.0\right)\times 40.3\left(\pm 0.02\right)/21.1\left(\pm 0.02\right)=? \\ \mathrm{c})\left[4.97\left(\pm 0.05\right)-1.86\left(\pm 0.01\right)\right]/21.1\left(\pm 0.02\right)=? \\ \mathrm{d})2.0164\left(\pm 0.0008\right)+1.233\left(\pm 0.002\right)+4.61\left(\pm 0.01\right)=? \\ \mathrm{e})2.0164\left(\pm 0.0008\right)\times {10}^3+1.233\left(\pm 0.002\right)\times {10}^2+4.61\left(\pm 0.01\right)\times {10}^1=? \\ \mathrm{f}){\left[3.14\left(\pm 0.05\right)\right]}^{1/3}=? \\ \mathrm{g})\log {\left[3.14\left(\pm 0.05\right)\right]}^{1/3}=? \end{gathered}$$

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