Acomputer systems engineer could pain his own house, but it makes more sense for him to hire a painter to do it. explain why.

The painter would do a more professional job rather than the computer systems engineer because if he painted his own house without hiring the painter, it wouldn't look as professional as the painting of a professional painter. Thus, it would be practical for the computer systems engineer to hire someone who'll be proficient in doing that kind of task.

The preamble explains the reasons  why ben franklin and the other founding fathers  of the constitution made our government a republic. by doing this they also replaced the articles of confederation

The preamble of the constitution was written to explain the aim of the constitution