Answer:
-6 and 3
Step-by-step explanation:
3-(-6)=3 +6=9 (two negative signs= positive sign)
-6 +3 = -3
It you have 6 negative tiles and add 3 positive tiles, the 3 negative tiles cancel 3 positive tiles. So hat is left is 3 negative tiles
Base area* height
base area:
parallelogram: width*length
triangles: (height * base) /2
You have to divide to find a common number. 143/13=11
1:11