Dominus Inc, uses account analysis to estimate costs and had estimated the following costs as cost that are driven by labor hours

Fixed costs variable costs

Account $11,2813,165$

Account $22722,511$

Account $35131,336$

Account $41,549572$

These costs are associated with a $381$ labor hours

Determine the linear cost equation and estimate what total costs would be if the company uses $505$ labor hours?