The tip is $2.40 and the bill is$14.40
Number of faces + (Number of vertices - Number of edges) = 2
So plugging in the numbers it would then be
18+(12-30)=2
18-18=2
0=2
Kelvin would be wrong and I disagree with him. (Because ...*plugin work cited above*)
D . Is the correct answer
Hope this helps, 49ounces --> 49/20 *100 (sry for the bad handwriting)
