The lenght of your ruler is 6inches or approximately 15cm.
The correct representation of the scale is 1 inch:2 feet
<h3>What are scale ratios?</h3>
Scale ratios are used to show the relationship between quantities of different measurements
The scale is given as:
1 inch = 2 feet
Represent the above scale, as ratio

Hence, the correct representation of the scale is 1 inch:2 feet
Read more about scales at:
brainly.com/question/24579126
Answer:
the first option
a = -2
b = 3
Step-by-step explanation:
See photo attached. (:
1. 2/8
2. 3/4
3. 1/3
4. 4/5