Because the tell if he number is big or small
Answer:
2.5•2 = 5
Step-by-step explanation:
The resulting two-dimensional cross-section is the area of a square.
Area of a square is equal to:

Having

<u>substitute</u>

Answer:
1. 3x-9+2y
2. 7x+6
Step-by-step explanation:
1. 2x + (x - 4) + (2y - 5)
2x+x-4+2y-5
3x-9+2y
2. 3(x - 2) + 4(x + 3)
3x+4x-6+12
7x+6