Aqua Spring produces agricultural irrigation equipment. During a year, the amount of overhead costs on a per$-$month basis varies in relation to the machine hours used

in a given year. The low for the past year was $4,140$ hours, and the expense associated was $$86,840.$ The high for the period was $7,300$ hours, and the associated

expense was $$123,356.$ During the low month, the $$86,840$ in overhead costs consisted of indirect materials of $$41,400($a variable expense$),$ rent of $$36,000($a

fixed expense$),$ and maintenance costs of $$9,440($a mixed expense$).$

Read the requirements.

What are the estimated costs for indirect materials?

Requirement $1$b$.$ Given the breakdown of expenses in the

whole dollar.$)$

What are the estimated costs for rent?

Requirement $1$c$.$ Given the breakdown of expenses in the

whole dollar.$)$

What are the estimated costs for maintenance?

Requirement $2.$ What is the cost function for maintenance

Determine the variable $($ v $)$ and fixed $($ f $)$ cost components of

nearest cent. Round your answer for the fixed cost to $t$

Required

Given the breakdown of expenses in the low period, what are the estimated

costs for $($a$)$ indirect materials, $($b$)$ rent, and $($c$)$ maintenance during the

high period?

What is the cost function for maintenance costs?

What amount of maintenance costs would be expected with $7,800$ machine

hours of work?

What would be the total overhead costs at $7,800$ machine hours?