What the question means by substitution is that you will take each answer and put it into the original equation. Lets start with a.
a. (6,12): the first number will always be x, so anywhere you see an x in the original equation, put a 6. The second number will always be y, so anywhere you see a y put a 12.
y=x+6y=2x
(12)=(6)+6(12)=2(6)
Does this make sense? Not quite.
b. (-12,-6)
(-6)=(-12)+6(-6)=2(-12)
Does this make sense? No
c. (-6,-12)
(-12)=(-6)+6(-12)=2(-6)
Does this make sense? No
d. (2,4)
(4)=(2)+6(4)=2(2)
Does this make sense? Not just quite.
It seems like it is either A or D but the math says that it is not either of them.
<span>Pennsylvania, Gettysburg, Address</span>
The words that should be capitalized are: Pennsylvania, Gettysburg, and
Address. Pennsylvania is a proper noun that is a name of a place. Gettysburg
Address should also be capitalized because it is the title of the famous speech
that Abraham Lincoln. It is the speech that paved the way to democracy with the
well-known phrase: a government of the people, by the people and for the people.
A statement that responds to and defends against something
Answer:
The simple past is "did they drive?"
Explanation:
To change a sentence from present to past tense, you need to alter the verb. In this case, "do" would need to be change to its past tense, "did".