An appliance is marked at 240 dollars, discounted by 35%, then charged 12% tax. Estimate first, then choose the exact total.

توضیح

The exact sequence is 240 × 0.65 × 1.12 = 174.72 dollars, consistent with the estimate. Choosing 156 stops after the discount, while 184.80 simply nets the rates and ignores the changed tax base.