The kind of ROI Luis demonstrates is : Positive ROI
<h3>Positive ROI</h3>
A positive ROI is defined as when the cost of a financial decision/step is lower than the gain of a financial decision.
Luis takes a loan to help him earn a certificate, the certificate he earns has helped him earn a good salary job which he can use to repay the loan.
Therefore in the long term Luis will have a positive return on investment on his financial decision.
Hence we can conclude that the kind of ROI Luis demonstrates is Positive ROI.
Learn more about ROI here : brainly.com/question/23603222
Yes their is, some people can be hands on learning, or they may use the style of someone telling them how to do it. Theirs also reading to learn. Some other styles as well.
Because there could be only one piece of merchandise or more than one but that aspect of the question isn't verified so therefore to be safe the answer would be straighten it up and not them
