1.The following data pertains to activity and the cost of cleaning and maintenance for two recent months:
  | 
 Month 1 
 | 
 Month 2 
 | 
| 
   Production volume 
 | 
 2,400 
 | 
 units 
 | 
 3,100 
 | 
 units 
 | 
| 
   Cleaning and maintenance costs 
 | 
 $1,000 
 | 
  | 
 $1,210 
 | 
  | 
| 
 The best estimate of the total month 1 variable cost for cleaning and maintenance is: (Do not round intermediate calculations.) 
 | 
2.
| 
 At an activity level of 8,500 machine-hours in a month, Nooner Corporation's total variable production engineering cost is $708,900 and its total fixed production engineering cost is $168,210. What would be the total production engineering cost per unit, both fixed and variable, at an activity level of 8,900 machine-hours in a month? Assume that this level of activity is within the relevant range. (Do not round intermediate calculations.) 
 | 
  | 
 $101.95 
 | 
  | 
 $101.41 
 | 
  | 
 $102.48 
 | 
  | 
 $102.30 
 | 
3.Supply costs at Lattea Corporation's chain of gyms are listed below:
  | 
 Client-Visits 
 | 
 Supply Cost 
 | 
| 
   March 
 | 
 11,660      
 | 
 $28,574      
 | 
| 
   April 
 | 
 11,456      
 | 
 $28,408      
 | 
| 
   May 
 | 
 11,988      
 | 
 $28,832      
 | 
| 
   June 
 | 
 13,300      
 | 
 $28,918      
 | 
| 
   July 
 | 
 11,720      
 | 
 $28,635      
 | 
| 
   August 
 | 
 11,206      
 | 
 $28,234      
 | 
| 
   September 
 | 
 12,000      
 | 
 $28,833      
 | 
| 
   October 
 | 
 11,691      
 | 
 $28,591      
 | 
| 
   November 
 | 
 11,839      
 | 
 $28,716      
 | 
| 
 Management believes that supply cost is a mixed cost that depends on client-visits. Using the high-low method to estimate the variable and fixed components of this cost, those estimates would be closest to:(Round your Variable cost per unit to 2 decimal places.) 
 | 
  | 
 $2.02 per client-visit; $28,636 per month 
 | 
  | 
 $.91 per client-visit; $17,471 per month 
 | 
  | 
 $0.37 per client-visit; $24,024 per month 
 | 
  | 
 $0.33 per client-visit; $24,529 per month 
 |