Answer:
Gerrard
Step-by-step explanation:
Let the size of each poster be 
Eve's poster portion painted will be

Gerrard's painted portion will be:

From the two inequalities, we find that
is greater than
by x/30

hence Gerrard has the larger blue section. His portion is 16.67% greater than Eve's
2 gallons divided between 9 people would equal 0.222222222 gallons per person
I'll just name the lines as A, B, C, D, E.
A : Corresponding angles
B : Alternate Interior angles
C : Co - Interior angles
D : Vertical angles
E : Alternate Exterior angles