Answer:
The price per CD that Drew bought=$11
Step-by-step explanation:
Margie's total cost can be expressed as;
C=(p×n)+t
where;
C=total cost
p=price per unit of CD
n=number of CD bought
t=tax on purchase
In our case;
C=$61
p=unknown
n=5
t=$6
replacing;
61=(5×p)+6
5 p+6=61
5 p=61-6
5 p=55
p=55/5
p=11
The price per CD that Drew bought=$11