Answer:
Percentage of their monthly income for expenditure on new tires = 11.34%
Explanation:
Monthly income of the family = $3500.00
Expenditure on new tires = $397.00
Percentage of their monthly income was that expense = (Expenditure on new tires/ Monthly income of the family) x 100
Percentage of their monthly income for expenditure on new tires = (397/3500)x100
= 11.34 %
So, percentage of their monthly income for expenditure on new tires = 11.34%