Question

What does how much mean in math

Answer 1

For this case the term "how much" is used to know the quantity of a variable that can not be counted.
For example, to know how much an object weighs, to know how much liters a tank has, we use "how much"
This is different from using "how many".
"How many" we use it to ask about numbers that can be counted
For example, to know how many people are in a place.
Answer:
It is used to ask questions regarding quantity.

Answer 2

In math "how much" is often the beginning of a question. What follows will give you more context as to how you should complete the question. For example, if the questions asks: How much time does it take to get from Point A to Point B (given that it provides you with the coordinates of these points and the units of time), you will then know that you're supposed to find the distance between these two points and figure out how long it takes to make that distance (of course the question will have more context for you to make an equation).