What are the variables and numbers of 5d plus 2c?

Oh, dude, you want me to do math? Alright, so in the expression 5d + 2c, "5" and "2" are the coefficients, and "d" and "c" are the variables. So, like, the variables are "d" and "c," and the numbers are 5 and 2. That's it, that's the math lesson for today.