Answer:
She paid 9% of sales tax
Step-by-step explanation:
The sale price of diamond = $375
Let x be percent of sales tax
So, amount of tax = [tex]x\% \times 375 = \frac{x}{100} \times 375 =3.75x[/tex]
So, Amount including tax = 375+3.75x
We are given that Bethany paid $408.75 for a pair of diamond stud earrings.
So, 375+3.75x=408.75
3.75x=408.75-375
[tex]x=\frac{408.75-375}{3.75}[/tex]
x=9
Hence She paid 9% of sales tax
