True/False Questions / if u can wz explanation

Managerial accounting places greater emphasis on the future than financial accounting, which is primarily concerned with the past.

6. Variable costs per unit are affected by changes in activity.

7. The amount that a manufacturing company could earn by renting unused portions of its warehouse is an example of an opportunity cost.

8. To estimate what the profit will be at various levels of activity, a manager can simply take the number of units to be sold over the break-even point and multiply that number by the unit contribution margin.