Question 1036479
 Nathan wants to buy a sweatshirt and is trying to determine the better buy. He has a 30​% coupon for the​ in-store purchase. The store charges ​$42 for the sweatshirt he wants.​ 
Inhouse cost:: 42-0.30*42 = 0.7*42 = $29.40
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However, he found the same sweatshirt online for ​$34 and gets 25​% off as a​ first-time buyer. 
Online cost:: 34 - 0.25*34 = 0.75*34 = $25.50
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There are no shipping charges. Which is the better​ buy? By how​ much?
Ans: Online:: by $3.90
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Cheers,
Stan H.