Which of the following is a variable expenses for many adults

Scoresby co. uses 6 machine hours and 2 direct labor hours to produce product x. it uses 8 machine hours and 16 direct labor hours to produce product y. scoresby's assembly and finishing departments have factory overhead rates of $240 per machine hour and $160 per direct labor hour, respectively. how much overhead cost will be charged to the two products? a. product x = $1,440; product y = $2,560 b. product x = $1,760; product y = $4,480 c. product x = $3,200; product y = $9,600 d. product x = $800; product y = $800