Each drop-in guest is counted as half guest, therefore, 15 drop-in guests will be counted as 15/2 = 7.5 guests
Total guests including drop-in guests expected at Sydney and Nathan party will be
40 + 7.5 = 47.5 guests
from the table, 19 guests will order 28 pieces of fried chicken, 4 1/3 pounds of Deli meats and 10 3/4 pounds of Lasagna, , going by this proportion,
[tex]\begin{gathered} 47.5\text{ guests will order : }\frac{47.5}{19}\text{ }\times\text{ 28 = 70 pieces of fried Chicken} \\ \\ \frac{47.5}{19}\times4\frac{1}{3}\text{ = 10}\frac{5}{6}\text{pounds of Deli Meats} \\ \\ \text{and } \\ \frac{47.5}{19}\text{ }\times\text{ 10 }\frac{3}{4}\text{ = 26 }\frac{7}{8}\text{ pounds of Lasagna} \\ \end{gathered}[/tex]
