To find this answer, we need to multiply 3.57 by 12.

Therefore, 12 planks will cost $42.84.
Answer:
15ft
Step-by-step explanation:
Draw out the picture and use the Pythagorean theorem (equation is written in blue) to solve.
View Image
She is correct because a negative subtracted by a negative is positive.
Answer:

Step-by-step explanation:
The inequality includes -53.
The interval notation is 

Answer:
<h2><u><em>
False</em></u></h2>
Step-by-step explanation:
Is this true or false:
w(5)=w(-5)
we give the value 1 to w to keep it simple
1 ( 5 ) = 1 (-5 )
5 = -5
<em>It's false</em>