Answer:
(a - 3b)(a + 3b)
Step-by-step explanation:
a² - 9b²
(a)² - (3b)²
(a - 3b)(a + 3b)
B. she should buy 14 yards of fabric,because 14×3=42 so there is your 42 feet.
Answer:
36 Hope this helps Im so sorry if this is wrong.
Step-by-step explanation:
Its actually the same length. I will choose B so that i can run slower
Answer:

Step-by-step explanation:
<u>Composite Function
</u>
Given f(x) and h(x) real functions, the composite function named
is defined as:

It can be found by substituting h into f.
We are given the functions:


It's required to find 
As defined above:

Thus:

Find h(2):

h(2)=0
Now:

