Answer:
9
Step-by-step explanation:
The coefficient is always the number before the variable (X).
Answer:9
The coefficient is always by the variable (the number or letter)
Answer: 108
-1/2+x/2 is the inverse for this
648 sq units
Area of the base= 12×12= 144 sq. units
Perimeter of the base=4×12= 48
Total surface area= 1/2×48×21 + 144
=648 sq units
