Answer:
b. $680
Explanation:
Calculation to determine how much would she be willing to pay for an apartment downtown, assuming a 20 workday month
First step to determine the Cost of commuting using this formula
Cost of commuting = Cost of gas and productivity × 20 workday month
Let plug in the formula
Cost of commuting =$4*20
Cost of commuting =$80
Now let determine how much would she be willing to pay for an apartment
Using this formula
Amount willing to pay= Total rent + Cost of commuting
Let plug in the formula
Amount willing to pay= $600 + $80
Amount willing to pay= $680
Therefore how much would she be willing to pay for an apartment downtown, assuming a 20 workday month is $680