1. Internet: $90, with no sales tax, plus $10 shipping fee
2. Store X: $90, a 10% discount, plus 30% tax on discounted price
3. Store Y: $100, no tax
4. Store Z: $90, a 20% 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?
Choose the correct choice from the following answers.
A) 88.1
B) 89.0
C) 89.1
D) 89.5
E) 98.0
Option 2 = (90 - 9) + 0.3 * 81= 
<gadget id="calculator">(90 - 9) + 0.3 * 81</gadget>
<output>105.3</output>
105.3   Option 4= 90 + 0.2 * 90 - 10= 
<gadget id="calculator">90 + 0.2 * 90 - 10</gadget>
<output>98</output>
98   So the OA is correct - 98.0
<result>E</result>
1. Internet: $90, with no sales tax, plus $10 shipping fee
2. Store X: $90, a 10% discount, plus 30% tax on discounted price
3. Store Y: $100, no tax
4. Store Z: $90, a 20% 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?