Answer: ar least $500 per month.
Step by step explanation:
Take the total he needs ($15,000). Subtract what he already has saved ($3,000) to find out how much he still needs to save. So, he needs to save an additional $12,000. He has 2 years (24 months) to save that amount. So divide how much he needs to save by how long (12,0000/24). Total is $500 per month