Answer c=5.196
c=sqrt(27)
c=5.196
$3.20
2.99 • 7% = 0.2093
2.99 + 0.2093 = 3.20
We can use the is/of=p/100 method for this problem. Since it's 15% off, this would mean that the bill is 85% of what it was initially. Plug the values into the is/of=p/100 formula.
36.72/x = 85/100
Solve for x.
x=36.72/0.85
x=43.2
So, the bill was $43.20 before applying the voucher discount of 15% off.
