37.01 for Jayna.
36.91 for Myriam.
36.78 for Riley.
Answer:

Step-by-step explanation:
Given


Required
Determine the amount of blue paint when Red = 2
To do this, we make use of the following equivalent ratios

When
and 

When Red = 2

Equate both ratios

Convert to division

Convert fractions to improper fraction



Make Blue the subject



The sum of Heptagon’s inner angles is 180*(7-2)=900 degree
So x=900-146-122-142-140-110-142=98
The answer is y^2-23y+-7y^2/2+21