Maxine bought a lamp that was on sale for 30% off the original price. The original price of the lamp was $42. What is the new price of the lamp before tax?

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Question

Maxine bought a lamp that was on sale for 30% off the original price.  The original price of the lamp was $42.  What is the new price of the lamp before tax?

You must show your work

anonymous · Answer

There are two ways to do this. 

Take the price and multiply it with the sale, and then subtract this number from the original. 
42*.3=12.6
42-12.6 = 29.4

OR

Multiply the price and 1 minus the tax.

42(1-.3)= 29.4