Assume you had invested $168 in supplies to set up a window washing business for the summer. During the first week, you are presented with two opportunities. You can wash the windows at a housing development for $320, or you can help paint an apartment for $300. The additional costs you will incur are $60 and $25, respectively.

These costs include $4.50 under each alternative for transportation to the job.

Which alternative should you choose?