Answer: 
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:
2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and 
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is:
So all you have to do to find out how much she had before is add up both value 12.50+34.25= 46.75$ (answer)
because y-12.50=34.25 so you would have to had the 12.5 to the other side to find the value of Y
Answer:
The answer is A) a=-4
Step-by-step explanation:
If it starts with 0.12 it is false.
But if it starts with 0.009 it is true.
Answer: 4.25.
Step-by-step explanation:
First subtract 13.09 from the 21.59, giving you 8.5 as the leftover space on the page.
Then divide in half to find the left and right margin.
