Final answer:
B) a + (2a - 7) = 41
The equation that represents the relationship between Gigi's age and her sister's age is a + (2a - 7) = 41
Step-by-step explanation:
The correct equation that represents the relationship between Gigi's age and her sister's age is option B) a + (2a - 7) = 41.
To solve this problem, we can start by assigning a variable to represent Gigi's age. Let's say a = Gigi's age. Then, her sister's age can be represented as 2a - 7 (7 years less than twice Gigi's age).
Finally, we can set up the equation: Gigi's age (a) + her sister's age (2a - 7) = 41. This translates to: a + (2a - 7) = 41.