Question

Samantha McQuade bought a blender and gave the store's clerk a $50 bill and a $1 bill. She received $.72 in change. If the sales tax rate in her community is 7.5%, what was the selling price of the blender before taxes?

Answer 1

the answer 
$50 +$1=$51
so $51-$0.72=$50.28
the taxe rate is 7.5%
it is $50.28x7.5/100= $3.77

the selling price of the blender before taxes was $50.28 - $3.77=$46.50