Please answer all 5 as they are under 1 question set. Thank you!

Variable costs per unit increase proportionately with increases in volume of activity.

a. True

b. False

While the total amount of fixed cost changes with the level of production, fixed cost per unit remains constant as volume changes.

a. True

b. False

As the level of volume of activity increases, the variable cost per unit remains constant.

a. True

b. False

Dividing a mixed cost into its separate fixed and variable cost components makes it more difficult to perform cost-volume-profit analysis.

a. True

b. False

The relevant range of operations includes extremely high and low levels of production that are unlikely to occur.

a. True

b. False