Respuesta :
Answer: 9.25%
Step-by-step explanation:
Hi, to answer this first we have to calculate the amount of the tax paid, by subtracting the price of the book (40) to the total price paid (43.70)
43.70-40 = 3.7
So, $40 is the price of the book. It’s the 100% of the price. $40/100%
For 3.7 = 3.7/100
$40/100%= $3.7/x%
40/100 =3.7/x
x = 3.7/ (40/100)
x=9.25%
Feel free to ask for more if needed or if you did not understand something.