For perimeter you just add the sides up, so 15+12+9 which = 36
Its c (9) because the opposite of -9 is 9
The square is 12 m long and the triangle is 11 m long
I can answer it but what’s the end part 15562
She's be using 12 cups of sugar. Heres the explanation to how i got that, i figured out what number 16 would multiply by to get 64 which was 4, so then i also multiplied 3 by 4 which is how i got 12. Hope this helps
