Answer:
The answer is A.
Step-by-step explanation:
So we have the two equations:

To make a substitution of the second equation into the first equation, we need to isolate the <em>y </em>variable in the second equation. Thus:

Now, we can substitute this into the first equation. Therefore:

Answer:
35 miles per hour
Step-by-step explanation:
175 -140 = 35
35/1 = 35
Are you asking like thousands or something else?
4+8 is 12 so yes it is correct!!!
Answer:
like 1000 maybe?
I think that's like a tough estimate