Hello! Can you please help me answer these questions? Thanks!

QUESTION 20 Not complete Points out of1.00 '7 Flag question Information for Tube division is as follows: Net earnings for division $20,000 Asset base for division $50,000 Target rate of return 16% Operating income margin 12% Weighted average cost of capital 8% What is Tube's residual income? Select one: \" A. $13,000 " B. $ 8,000 f\" C. $12,000 A D. $16,000 - QUESTION 21 Not complete Points out of1.00 p Flag question As volume increases, average cost per unit decreases because Select one: fx A. total xed costs stay the same. " B. total variable costs stay the same. r-x C. total xed costs increase. r-x D. total va riabie costs increase