Mr. Ruiz, the owner of a canoe shop buys paddles for $25.00 each and sells them for 150% profit. A customer buys a paddle for $40.78, which includes the selling price and sales tax. What is the sales tax rate?

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step-by-step explanation:

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the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this

he answer is x=1x3 because x=1 to x=3