If the total of a fixed cost is $15,000 at a level of 9,000 machine hours and the relevant range of the cost is 5000-10,000 machine hours, when the activity level decreases to 6,000 machine hours, what is the total fixed cost? (round to the nearest cent as needed)

If the total of a fixed cost is $15,000 at a level of 9,000 machine hours and the relevant range of the cost is 5000-10,000 machine hours, when the activity level decreases to 5,000 machine hours, what is fixed cost per unit? (round to the nearest cent as needed)

If the total of a variable cost is $15,000 at a level of 9,000 machine hours and the relevant range of the cost is 5000-10,000 machine hours, when the activity level decreases to 7,000 machine hours, what is the total variable cost? (round to the nearest cent as needed)

If the total of a variable cost is $16,000 at a level of 10,000 machine hours and the relevant range of the cost is 5000-10,000 machine hours, when the activity level decreases to 5,000 machine hours, what is the variable cost per unit? (round to the nearest cent as needed)