Answer:
A. on edge
Step-by-step explanation:
Do you have the whole question? The problem that you gave does not have a problem....
$7.55
6.95+2.75+2.75=12.45
20-12.45=7.55
4 1x2x3 =6
5 3x4x1=12
6 2x3x2=12
Hope that help
