Answer:
B.
Step-by-step explanation:
because they have the same base and it's a multiplication so you have to add the exponents
1/49=x^2 where x is the side of the square
1/49=(1/7)^2, so the side length of the square is 1/7
Make a proportion:

Then cross multiply and divide to solve.
20x=119
x=5.95
The answer is $5.95
Option B i.e. Non-Euclidean