Final answer:
The equation relating the total amount saved to the number of weeks for both Aldo and his wife's saving plans is T = 20.55N + 65.95N, which simplifies to T = 86.5N. This equation assumes no initial savings and just adds the weekly savings together.
Step-by-step explanation:
The task is to find an equation relating the total amount saved (T) to the number of weeks (N) using both Aldo's and his wife's saving plans combined. To solve this, we need to add the amounts saved by Aldo and his wife each week to the initial amount. If the initial amount is not specified in the context of the saving plans, we can omit it. Since we are given two rates at which they are saving per week (20.55N and 65.95N for Aldo and his wife respectively), we add these two rates together. The correct equation for the total amount saved after N weeks will be T = 20.55N + 65.95N. We can also simplify this by combining like terms to get T = 86.5N. This represents the combined weekly savings of Aldo and his wife. If there is a starting amount, it should be added as a constant to the equation.