C D Month 1 Month 2 Month 3 Month 4 Month 5 Month 6 Month 7 Month 8 Month 9 Month 10 Month 11 Month 12 Activity Cost 12,660 167,406 12,660 164,874 14,040 178,260 13,920 175,888 12,840 169,044 12,800 168,580 12,670 164,863 13,900 175,910 13,410 174,031 11,870 159,030 12,640 164,396 13,880 178,108 What is the variable cost per unit? what is the fixed cost ? what cost would you predict for an activity level of 13500? what cost would you predict for an activity level of 15000