Answer:
Part A:$1,600
Part B:$2,000
Part C:$300
Explanation:
Part A: What you do is it tells you to find out how much money is spent on housing and that is 80% of the bill so you do 2,000*80%=1,600.
Part B: It tells you what is it was actually 2,500 how much will you spend on housing so you just 2,500*80%=2,000.
Part C: What you do is it asks how much will you spend on food if you have 2,000. So it will be 2,000*15%=300.