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The answers:
x = 1
y = -5
C=3.14 x 26
C=81.64
C=2(3.14 x 13)
C=81.64
1 is 28
2 is 13, 84, 85
Figure both by the Pythagorean Theorem<span />
To answer this question you will set up the proportion shown in the attached picture.
There are 2 ways to solve this.
1. You can create an equivalent ratio by determining the factor that will take you from 1 cm to 2 cm and apply his factor to the 19 miles.
The answer would be 19 x 2= 38 miles for 2 centimeters.
2. The second strategy is to use cross products to get an answer. You multiply the number diagonal from each other. See picture for this work.