Check the picture below, let's use those two points on the line to get its slope.

Answer:
12 meters
Step-by-step explanation:
Given

Required
Determine the measurement when the scale reads 6cm
Represent this scale with x;
Such that:

Equate
and 

Express as fraction

Cross Multiply




First you would divide everything by bc on both sides to get a by it self. Then you answer will be a=c/bc
Answer:
u gotta divide the 7.5% and the other number that is says (can see the question but there)
21.325 is the correct answer