PLEASE HELP :((( mee

18) C  19) D

Explanation:

When investing or saving your money, you should always put it somewhere reputable. If you were to open a savings account, your money will be held safely and you will gain money from interest. Investing your money in an established bussiness can be risky, but it is even more risky to invest your money in a company that may fail.

Having more knowlege in any field can be a huge benefit to your career. Having a college degree or a certificate means that you have taken the proper classes and passed plenty of tests. This means that you have plenty of knowlegde on those subjects. Being proficient in multiple languages means that you can talk to an even broader range of customers and therfeore makes you a better candidate for jobs.

answer: your mom

explanation:

experiments.

surveys.

questionnaires.

interviews.

case studies.

participant and non-participant observation.

observational trials.

studies using the delphi method.