Answer:
Option (3)
Step-by-step explanation:
Volume of a rectangle = 
Area of the rectangular base = Length × Width
= 7 × 8
= 56 square in.
Height of the pyramid = 9 in.
Therefore, Volume of the given pyramid = 
= 168 cubic in.
Option (3) will be the correct option.
1) P=2w +2l
46=2w +14
32=2w
16= w or width
2) A=lw
A=7 x 12
A= 84
3) A= 12 x 21
A= 252
A) I don’t know for sure but please let me know :)