2.5 one decimal rounding off means to make it to one decimal place.the no is 24.9652 if you want to round of then you have to put decimal after 2 only then it will be one decimal place .this is becausewhenweseeanumberafterthepointgreaterthan5thenweadd1totherightside.nowifweadd1totherightsideof24.9652byroundingoffandmakingittoonedecimalplacethenitwillbe2.5.
To find this out you would have to divide 1.29 by three to get the price for one. 1.29/3=.43. So the price for one spaghetti sauce mix is .43$ or 43 cents. Hope this helps.
