1. Internet: $80, with no sales tax, plus $10 shipping fee
2. Store X: $90, a 10% discount, plus 10% tax on discounted price
3. Store Y: $90, no tax
4. Store Z: $90, a 10% sales tax, and $10 rebate after tax
Isaac can purchase a certain item in four different ways, as shown in the table. What is the lowest price for which he can purchase this item?	Select:	A) 88.1	B) 89.0	C) 89.1	D) 89.50	E) 90.0
1. Internet: $80, with no sales tax, plus $10 shipping fee --&gt; 80+10=90;   2. Store X: $90, a 10% discount, plus 10% tax on discounted price --&gt; 90*0.9*1.1  --  80+10= 
<gadget id="calculator">  --  80+10</gadget>
<output>90</output>
90;   2. Store X: $90, a 10% discount, plus 10% tax on discounted price --&gt; 90*0.9*1.1=89.1   3. Store Y: $90, no tax --&gt; 90;   4. Store Z: $90, a 10% sales tax, and $10 rebate after tax --&gt; 90*1.1-10  --  90*0.9*1.1= 
<gadget id="calculator">  --  90*0.9*1.1</gadget>
<output>89.1</output>
89.1   3. Store Y: $90, no tax --&gt; 90;   4. Store Z: $90, a 10% sales tax, and $10 rebate after tax --&gt; 90*1.1-10=89.   So the lowest price is $89.   Answer: 89.0.--  90*1.1-10= 
<gadget id="calculator">--  90*1.1-10</gadget>
<output>89</output>
89.   So the lowest price is $89.   Answer: 89.0.
<result>B</result>
1. Internet: $80, with no sales tax, plus $10 shipping fee
2. Store X: $90, a 10% discount, plus 10% tax on discounted price
3. Store Y: $90, no tax
4. Store Z: $90, a 10% sales tax, and $10 rebate after tax
Isaac can purchase a certain item in four different ways, as shown in the table. What is the lowest price for which he can purchase this item?