(4 questions on this) Fuentes Company has been in operation for two months, January and February, and incurred the following costs A to G: Month Number of units sold Costs incurred: A January February 60 40 $135 $90 B $60 $45 C D E F $620 $620 $243 $162 $101 $74 $80 $80 G Total $61 $49 $1,300 $1,120 Over the two month period, what were the variable costs per unit? (Do not include a $ sign)