Given:
The expressions are


To find:
The simplified form of each expression.
Solution:
We have,

![[\because x^{-n}=\dfrac{1}{x^n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20x%5E%7B-n%7D%3D%5Cdfrac%7B1%7D%7Bx%5En%7D%5D)

Therefore, the simplified form of
is
.
We have,

![[\because x^{-n}=\dfrac{1}{x^n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20x%5E%7B-n%7D%3D%5Cdfrac%7B1%7D%7Bx%5En%7D%5D)


Therefore, the simplified form of
is
.
Answer:42
Step-by-step explanation:
7 multiplied by 6= 42
Answer:
the one on top= c= -12
the bottom one= f= -15
Step-by-step explanation:
Answer:
You have its E because if it's a A percentage you have to turn the inter despara point
9514 1404 393
Answer:
60 hours
Step-by-step explanation:
We want Joanna's total savings to be ...
bank account + gift + earnings = 1000
300 +100 +10h = 1000
10h = 600 . . . . subtract 400
h = 60 . . . . . . . .divide by 10
Joanna needs to babysit for 60 hours to earn the money she needs.