504 because when you multiply 9 by 8 and then by 7 (9x8x7) you get 504.
Remark
For every 3 units for NP will be 4 units. You can set up a proportion.
3*NP = 4*45
3*NP = 180 Divide by 3
NP = 180/3
NP = 60
Answer C
-4 * 4 = -16
<h2>This is the answer to math</h2>
Four terms are used when grouping to factor.
6z to the 4th power - 2z to the 3rd power