Final answer:
The equation showing the number of miles Victoria rides, n, is n = 29. Victoria rides 29 miles in the first week.
Step-by-step explanation:
To create an equation showing the number of miles Victoria rides, n, in relation to the number of miles Ted rides, we'll start by considering that Victoria rides 18 miles more than Ted. So, n = 11 + 18.
This simplifies to n = 29. Therefore, the equation is n = 29.
To find out how many miles Victoria rides in the first week, we substitute the value of n into the equation. So, Victoria rides 29 miles in the first week.