A furniture dealer purchased a desk for $150 and then set the selling price equal to the purchase price plus a markup that was 50% of the selling price. If the dealer sold the desk at the selling price, what was the amount of the dealer's gross profit from the purchase and the sale of the desk?  Choose the correct choice from the following answers
A) $40  B) $60  C) $80  D) $90  E) $150
Purchase price = 150   Selling price = x   150 + 0.5*x = x   0.5*x = 150   x = 300   Profit = 300 - 150= 
<gadget id="calculator">300 - 150</gadget>
<output>150</output>
150   ANSW$150R:$150
<result>E</result>
A furniture dealer purchased a desk for $150 and then set the selling price equal to the purchase price plus a markup that was 50% of the selling price. If the dealer sold the desk at the selling price, what was the amount of the dealer's gross profit from the purchase and the sale of the desk?