Respuesta :

lzamora0022

Answer:

Step-by-step explanation:

We can solve this by thinking of the full price as 100% (x)

So we take $639, which is 71% of the price.

71% of 100% (x) = $639

.71x = $639

All we need to do now is simplify this algebra equation

639/.71 = $900

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