-9 to the second power will most likely be 81. A negative x a negative equals a positive. Hope this helped.
Answer:
6.4×107km³
Step-by-step explanation:
V=a^3=400^3=6.4×10^7km³
Answer:
10i-27
Step-by-step explanation:
(i-3)+6i-3(8-i)
(i-3)+6i-24+3i
(i-3)+9i-24
10i-3-24
10i-27