Ricwy Corporation uses the cost formula Y = 54,800 + $0.40x for the maintenance cost, where X is machine hours. The August budget is based on 5,000 hours of planned machine time. Maintenance cost expected to be incurred during August is: OA-56,800 OB $3,600 OC. 58,400 OD. 57,600 QUESTION 7 At an activity level of 6.900 units in a month, Zelinski Corporation's total variable maintenance and repair cost is $408,756 and its total fored maintenance and repair cost is $230.253. What would be the total maintenance and repair cost, both fixed and variable, at an activity level of 6.900 units in a month? Assume that this level of activity is within the relevant range, DA 5648 270 B. 5639,009 OC5650,857 D. $657,531