Final answer:
Homer's annual expenditure on lottery tickets is calculated by multiplying the weekly spend of $13 by 52 weeks, which equals $676.
Step-by-step explanation:
To calculate the annual money spent on lottery tickets by Homer, we need to multiply the weekly expenditure by the number of weeks in a year. Homer spends $13 on lottery tickets every week. There are 52 weeks in a year, so the annual expenditure on lottery tickets is $13 per week multiplied by 52 weeks.
CALCULATION: $13/week × 52 weeks/year = $676/year
Hence, on an annual basis, the money spent on lottery tickets is $676.