Yi forgot two factors of 63, which are 3 and 21.
This would make the greatest common factor 21.
Answer:
11
Step-by-step explanation:
121/11=11
The answer is 29. If you put it in an equation, it looks like 90=(x*3)+3. If you -3 from each side, you get 87=x*3. Divide each side by 3, and you get x=29.
Answer:

Step-by-step explanation:
We want to find an equation of a line that's perpendicular to x=1 that also passes through the point (8,-9).
Note that x=1 is a <em>vertical line </em>since x is 1 no matter what y is.
This means that if our new line is perpendicular to the old, then it must be a <em>horizontal line</em>.
So, since we have a horizontal line, then our equation must be our y-value of our point.
Our y-coordinate of our point (8,-9) is -9.
Therefore, our equation is:

And this is in standard form.
And we're done!
Answer:

Step-by-step explanation:

When there is a ( - ) in front of an expression in parentheses , change the sign of each term.
Also, remove the parentheses
⇒
Collect like terms
⇒
⇒
Hope I helped!
Best regards!!