Respuesta :

Answer:

ROI=17.33%

Explanation:

the rate of return = Net gain/ initial investments x 100 %

Net gains = (selling price  - commissions) -  purchase price

Purchase price = 20 x $30 = $600

Selling price = 710

Commission = $6

ROI ={( 710 - 6) - 600}/ 600 x 100

ROI = 104/600 x 100

ROI= 0.173333 x 100

ROI=17.33%

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