Given:
a.) Joe completed 2 more than 3 times the number of homework questions Calvin completed.
Question 1: Write an expression to find the number of homework questions Joe has completed.
Let,
x = the number of homework Joe completed
y = the number of homework Calvin completed
The expression will be:

Question 2: What is the variable in your expression, and what does it represent?
The variables are x and y.
Where,
x = represents the number of homework Joe completed
y = represents the number of homework Calvin completed