GIVEN:
x + y = 7
x² + y² = 25

You may recognize that one possible solution to BOTH equations is x = 3 and y = 4
So, we get:
QUANTITY A: x + y² = 3 + 4²
QUANTITY B: 3 + 4²
In this case, the quantities are equal

Another possible solution is x = 4 and y = 3
So, we get:
QUANTITY A: x + y² = 4 + 3² = 4 + 9 = 13
QUANTITY B: 3 + 4² = 3 + 16 = 19
In this case, Quantity B is greater

Answer: D

Cheers,
Brent