List 6 different mechanisms in the Rube Goldberg cartoon and predict the purpose of each

Ineed on my history if anyone can check out the last few questions i posted and i will be posting !

A.) generate scaffolding to create database for your application. develop all the entities identified in assignment #2. add any additional that may be identified later. b.) add data validation rules to the models that are appropriate for your application and data. c.) create links for each scaffold in the header section. part 2: application updates [30 points] a.) add two additional views to the "home" controller you created in assignment #1. b.) the two views should be named as “privacy" and "". c.) link the two newly created views in the footer section. hint: you would need to modify the “home" controller definition and create “privacy.html.erb" and “.html.erb" files in appropriate locations.

Which of the following is not contained on the slide show toolbar? a. next button b. slide button c. close button d. pen too