This figure is what we would call a composite figure. A composite figure is a shape that is made up of multiple other shapes. when looking at the pond and the border that surrounds it, we can see that this heart shape is made up of two semi circles and a square. To find the area of the border, we will use the area formulas for semi circles and for squares:
Semi Circle Area Formula:

÷
2
Square Area Formula: length x width
Pi = 3.14
Radius = Half of the diameter, in this case 6
After finding the area of each shape, we can subtract the 2 ft width to find the area of the flower bed border.
According to my calculations, after 200 miles, the prices will be equal.
You need to make the right side = 0
To do this you subtract 10 from both sides of the equation:-
x^2 + 6x + 9 - 10 = 10 - 10
x^2 + 6x - 1 = 0
Short side is 4, long side is 8.
Math: I made a rectangle with double the area. I took that number and found the multiples. 1x32, 2x16, 4x8. 4 is half of 8, so its the shorter side.
S=saving
X=amount left
S-55=x
Another way : x=s-55