For his exercise last weekend Bentito walked 5 miles and jogged 2 miles what is the ratio of the miles walked to the total number of miles of exercise. Elsa chose answer A as the correct answer. How did she get that answer

There is extra info in this question. "2 miles jogged" is not important; we only need the number 2 in this statement. The ratio is asking for the miles walked to the total amount of miles exercised. In the question it states that Bentito walked 5 miles so the first part of the ratio for the answer would be 5 (miles walked). The second part of the ratio would be the total amount of miles so we take the amount walked, 5, and the number that was jogged, 2, and add those together to get the second part of the ratio, 7. The complete and correct ratio would be 5:7