It would be 0.
5 times zero is zero, adding 6 will make it equal to 6.
Hope this helped broski
Answer:
The equations that represent the situation are:
2y+x=5
5x-y=3
Not sure about 1 and 8, I think there trapezoids but not sure.
2 is a square
3 is a rectangle
4 and 10 are a rhombus
5 and 11 are parallelograms
6 is a kite
7 is a square
can't really see 9
can't really see 12
Hope that helped.