At a sales volume of 30,000 units, carne company's total fixed costs are $30,000 and total variable costs are $45,000. the relevant range is 20,000 to 40,000 units. if carne company were to sell 40,000 units, the total expected cost per unit would be:

$2.25

Explanation:

sale volume of company = 30,000 unit

total fixed cost are = $30,000

total variable cost $45,000 for 30,000 unit

1 unit = 45000/30000 =  $ 1 . 5

for the sale of 40,000 unit

the  total expected cost

    = Fixed cost + Variable cost

      = $30,000 + 40,000×$1.50

      = $30,000+$60,000

     = $90,000

Cost per unit:

 = $90,000/40,000

=  $2.25

1   b) the use of non-standard grammar  

2   a) quiet and shy.

the assumption the narrator makes in this excerpt is that the messages he heards were going to hurt the narrator's mom; the narrator just springs in to action. the narrator doesn't specify in this excerpt why he believes that the messages present a problem that requires protection.