You solve for y and get
y=3/4x-5
Slope is 3/4
Y intercept is -5
1 meter is greater then 83 cm Because if you divide it will be 0.83 and the differences will be 0.17
Break this problem down first. You have two lines each with length of 5. You also have two halves of a circle, combine them to get a full circle with a radius of 2. The formula to find the perimeter of a circle is

and this gives a perimeter of 12.566 for the circle. Add this to your sides and you get a total of 22.566 which is answer B
The answer is zero point four three
You could also write this answer as 0.43