Answer:
If you would like to know which is the most reasonable goal for Kirk and his family to plan to save, you can calculate this using the following steps:
a. $225 a month * 2 years * 12 months = 225 * 2 * 12 = $5400
b. $200 a month * 3 years * 12 months = 200 * 3 * 12 = $7200
c. $100 a month * 4 years * 12 months = 100 * 4 * 12 = $4800
d. $75 a month * 5 years * 12 months = 75 * 5 * 12 = $4500
The most reasonable goal to plan to save would be goal b, because $7200 is more than $6845.