Step-by-step explanation:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate. The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other.
Answer:
66
Step-by-step explanation:
Answer:

Step-by-step explanation:
=
We need a common denominator before we can add.
+
means the same thing as
-
= 
Answer:
3.5 is the answer to that question