Answer:
$57.50
Explanation:
To find the cost of the available bicycle before taxes, we need to add another 15% to the original $50. To do that, all you do is multiply $50 by 15%, and then re-add the $50. Work is shown below:
First, change 15% into a decimal:
15% ->
-> 0.15
Next, lets find the cost of the available bicycle:
![x=50(0.15)](https://img.qammunity.org/2021/formulas/mathematics/high-school/ieg3uqscjvfcm8ziwppzdkegjmed6t9i7o.png)
![x=7.5](https://img.qammunity.org/2021/formulas/mathematics/high-school/w94aurp44ex2gsvn9hdmyq0ppp3r5dlloo.png)
Now add the $50 back 7.5:
![50+7.5=57.50](https://img.qammunity.org/2021/formulas/mathematics/high-school/w9x6frddelkjvfc1lbc53pe79h91lijt42.png)
Your answer is B. $57.50