Final answer:
To revise her personal monthly budget, Patricia should choose option 1) Lower monthly miscellaneous expenses by $250.
Step-by-step explanation:
To revise her personal monthly budget, Patricia should choose option 1) Lower monthly miscellaneous expenses by $250.
Currently, Patricia's total monthly expenses are $1870 for rent, $420 for groceries, and $845 for miscellaneous expenses, which totals to $3135. Her monthly cash inflow from wages is $3600, so her savings for the new digital camera is $3600 - $3135 = $465.
With the increase in rent by $400, Patricia's total monthly expenses will be $1870 + $400 for rent, $420 for groceries, and $845 for miscellaneous expenses, which totals to $3535. Her monthly cash inflow from wages is still $3600, so her new savings for the digital camera will be $3600 - $3535 = $65.
By choosing option 1 and lowering her monthly miscellaneous expenses by $250, Patricia will be able to save $465 - $250 = $215 for the new digital camera, which is a higher amount than the new savings of $65 if she chooses any other option.