Answer:
$2.60
Step-by-step explanation:
Set up a proportion.
6.5/100 = the sales tax percentage
set 40 equal to 100
[tex]\frac{6.5}{100} \\[/tex] = [tex]\frac{?}{40}[/tex]
Divide 100 by 40 so we understand the relationship.
100/40=2.5
Now we divide 6.5 by 2.5 so they can be equal.
6.5/2.5= 2.6
