أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
The answer is a. True
Because Mixed cost is consist of a fixed component and a variable component, in this example
Fixed component = $ 200 monthly base amount and
Variable component = Long distance charges
True, because it includes base/fixed amount and variable cost.
True...................it amixed cost