Al roy bought five bonds of jort co 11 3/4 at 93.25 and four bonds of inst system 12x08 for 81.125. if the commission on the bonds is 2.50 per bond, the total cost of all the purchases is

2.5% of $93.25 = $2.331

2.5% of $81.125 = $2.028

five bonds of Jort Co. 11 3/4 = 5 * ($93.25 + $2.331) = $477.9

four bonds of Inst. System 12x08 = 4 * ($81.125 + $2.028) = $332.6

Therefore the answer is $477.9 + $332.6 = $810.5

the answer is $477.9 + $332.6 = $810.5