Answer: Maria has 10 bills of 5€ and 10 bills of 10€.
She has a total of 150€.
Step-by-step explanation:
Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.
Set up a system of equations:

Use the Substitution method to solve the system of equations:
1. Solve for "f" from the first equation:

2. Substitute the equation obtained into the second equation and solve for "t".
Then:

3. Substitute the value of "t" into the equation
and evaluate:

Therefore, Maria has 10 bills of 5€ and 10 bills of 10 €.
So the total amount of money she has, is:

She has a total of 150€.
Length=width+x
l=w+x (x being the amount of feet longer than the width)
You press the thing that look like a paper clip
The correct answer would be J
So the problem is

and you need to find x.
You can find x by taking fourth root of 256. The easiest way is to use your calculator. On my scientific calculator, it is 2nd then the button ^ that is
![\sqrt[x]{}](https://tex.z-dn.net/?f=%20%5Csqrt%5Bx%5D%7B%7D%20)
You get the answer of 4.