Answer:

Step-by-step explanation:
Given

Number of beams failed by shear
Required
List each outcome and the value of X
To do this, we simply count the occurrence of S in each outcome.
This is tabulated as follows:

129,407
12 ten thousands is 120,000
8 thousand is 8,000
14 hundreds is 1,400
there are no tens
7 ones is 7
so 120,000+8,000+1,400+7=129,407
Answer:
A
Step-by-step explanation:
plug in y and x, if you want to be sure of each answer
In the case of A) here are the 2 equations, y-2=x+4 and 3x+4=x+6
now plug in what a describes
x=1, y=7
7-2=1+4 and 7=7
Therefore the answer is A
Factoring out (x-3), we get (7x^2+5) (x-3). That is your answer, I hope this helps :).