The initial slope would be (2, 3)
and the amount of oil she would extract would be 7.5 liters
Oil 3 + 3 + 1.5 = 7.5
Days 2 2 1 = 5
Show you how to do what i can not see anything right now.
Answer:
R=12 is the solution
I don't know how to explain but it needs to be 20 characters
The diagonal is the distance between opposite corners...
d=x^2+y^2
d^2=260100
d=510 feet
