Within the relevant range, a difference between variable costs and fixed costs is: multiple choice a. variable costs per unit change directly with activity and fixed costs per unit remain constant. b. variable costs per unit are constant and fixed costs per unit change indirectly with activity. c. both total variable costs and total fixed costs are constant. d. both total variable costs and total fixed costs change with activity.

Slimwood corporation made sales of $ 725 million during 2018. of this amount, slimwood collected cash for $ 670 million. the company's cost of goods sold was $ 300 million, and all other expenses for the year totaled $ 400 million. also during 2018, slimwood paid $ 420 million for its inventory and $ 285 million for everything else. beginning cash was $ 110 million. carter's top management is interviewing you for a job and they ask two questions: (a) how much was carter's net income for 2018? (b) how much was carter's cash balance at the end of 2016? you will get the job only if you answer both questions correctly.