It could be 443, try simplifying to the nearest hundreaths, hope this helps!
1 74/81 is the answer for 3 4/9 × 5/9
Answer:
In early production, first calcium cyanamide was converted into dicyandiamide, which was heated above its melting temperature to produce melamine. Today most industrial manufacturers use urea in the following reaction to produce melamine: 6 (NH2)2CO → C3H6N6 + 6 NH3 + 3 CO.
The correct answer is: 3.29999065 x 10^28
