Answer:
B.) to raise a power to a power you need to multiply the exponents
Answer:

Step-by-step explanation:

lowest common multiple of 2 and 3 is 6
21×3 = 63
21×2= 42
they are now going to have the same denominator of 6

now u are just gonna add the neumerators and keep the denominator

Answer:
-9i
Step-by-step explanation:
the complex conjugate of a+bi is a-bi
0+9i is 0-9i
Answer:
The Answer is 27 logs.
Step-by-step explanation:
4hrs = 6 logs
18hrs= ?x
then you cross multiply
so,18x6= 4x
4x/4=108/4
x=27 logs