544
Explanation:The differnce between 77 and 13
DIfference = subtraction
[tex]77\text{ - 13 = 64}[/tex]8.5 times the difference between 77 and 13:
times = multiplication
[tex]\begin{gathered} =\text{ }8.5\times(77-13) \\ =\text{ }8.5\text{ }\times64 \\ =\text{ 544} \end{gathered}[/tex]The result of 8.5 times the difference between 77 and 13 is 544
