In Calc, mathematical equations are called __________.

Averages?

How about formulas?

You may be looking for "differential formulas" or "differential equations".

In calculus, mathematical equations are called functions. A function is a rule that assigns a unique output value to each input value. It represents the relationship between the variables in the equation and can be used to model and analyze various mathematical and scientific concepts. To solve a calculus problem, you often begin by defining a function and then applying calculus techniques to study its properties and behavior.