If Mary spent half of her allowance the equation will begin with 1/2x or 0.5x where x is her allowance and 0.5 is half of her allowance spent. Mary also earned 7 dollars by washing the car so this will be added to her allowance spent.
The problem says that after Mary has spent half of her allowance at the movies she was left with 18 dollars so that means that the equation must be equal to 18.
The equation you want to set up is
0.5x+7=18
Where, 18-7=11
0.5x=11
11/.5 = x
x = $22
Thus, Mary has a weekly allowance of 22 dollars.
You can complete this by solving:

Which should give you .274418 or 27.44%
Answer:
The last option y<4. Y is less than 4 since the shaded region is below 4 on the y Axis.
Answer:
14m^2
Step-by-step explanation:
To find the area of this hexagon, you should separate this shape into 2 other shapes.
You can see that there is a parallelogram, and a rectangle shape within this hexagon, so you can find the area of these 2 shapes and later on, just add it.
The area of this rectangle is...
width✖️height: 6✖️2=12
The area of this parallologram is...
base✖️height: 6✖️2=12
12+12=14m^2