Your friend says that 14.5% is equivalent to the
decimal 14.5. explain why your friend is incorrect by comparing the
fractional equivalents of 14.5% and 14.5

14.5% = 0.145

Step-by-step explanation:

The term 'percent' (%) actually means per 100. So when you say 14.5% it means 14.5 per 100. So when you put that into an equation it actually means:

So when you solve it, 14.5% is actually 0.145 and not 14.5.

Your friend is then incorrect because:

14.5% ≠ 14.5

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72