One possible means of determining the difference between operating incomes for absorption costing and variable costing isa. by subtracting sales of the previous period from sales of this period.b. by subtracting fixed manufacturing overhead in beginning inventory from fixed manufacturing overhead in ending inventory.c. by multiplying the number of units produced by the budgeted fixed manufacturing cost rate.d. by adding fixed manufacturing costs to the production-volume variance.

Complete the following tasks for this equation: b/7.8=-2.15

a. Give an estimate for the solution. Be sure to explain how you arrived at the estimate, either by showing an equation or in words.

Estimate is b = -17. Since the answer of b divided by 7.8 is -2.15, I know that b should be greater than its double. If we double 7.8 I will get 15.6 so the value should be greater than -15.6 but not so big.

b. Solve the equation. Show or explain your work.

b/7.8 = -2.15, multiply both sides by 7.8 to get

b = (-2.15)*7.8

b= - 16.77

c. Compared to your estimate, is your answer reasonable? Explain your answer in complete sentences.

My estimate is -17 while the computed answer is -16.77. I believe my answer is reasonable since my estimate is just near the computed answer.