An appliance store decreases the price of a 19-in. television set 25% to a sale price of $ 474.75 . What was the original price?

   $633.00

Step-by-step explanation:

Decreasing the price 25% makes the new price be 75% of the original:

  $474.75 = 0.75×(original price)

  original price = $474.75/0.75

  original price = $633.00

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step-by-step explanation:

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answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.