Final answer:
The odds in favor that the next car leaving the lot will be red or white are 6:17, simplified from 12:34.
Step-by-step explanation:
The student asked for the odds in favor that the next car leaving the lot will be red or white. In the parking lot, there are 12 blue cars, 8 red cars, 4 white cars, and 10 silver cars, totaling 34 cars. To calculate the odds in favor for a red or white car leaving, we add the number of red and white cars together and then formulate the odds using the total number of cars. Thus, the number of red or white cars is 8 (red) + 4 (white) = 12. So the odds in favor are 12 out of 34, or 12:34, which can be simplified to 6:17.