Please please help. If you can figure out both that would be amazing but you can do one or the other if you want but please help me

How is the number of vertices for a prism related to the name of the prism

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove