Answer:
The first expense is 9.62 percent of the second expense
Explanation:
Expense on lottery tickets = $13
Expense on rent = $ 135
Let the lottery ticket be k percentage of rent $135
So, by definition k% of 135 = 13
or,

or,

⇒ k = 9.62%
So, the first expense is 9.62 percent of the second expense.