round to 2 sig figures and please be correct everytime it is wrong I lose progress

Combustion of glucose (C6H12O6) is the main source of energy for animal cells: C6H12O6(s)+6O2(g)6CO2(g)+6H2O(l)Grn(37C)=2872.kJ One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21kJ/mol. Suppose some cells are assembling a certain protein made of 46 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the maximum moles of this protein that can be assembled if 900.mg of glucose are available for combustion. Round your answer to 2 significant digits