Answer: 
Step-by-step explanation:
You need to remember that:

By the Power of a power property:

By the Negative exponent rule:

Therefore, having the expression
:
Descompose 27 and 9 into their prime factors:


Rewrite the expression and simplify. Then:

The answer is 9, because
12÷-4 +8-(-4)=9
Answer:
1.44 or ![\sqrt[3]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B3%7D)
Step-by-step explanation:
The correct answer is 9.5 feet.
15.Dylan has 400 more
17. 426 divided by 10= 42.6