Answer :
You have to divide total price by "18 times" for the first and by "12 times" for the second.
So,
The 18-issue subscription costs [tex] \frac{40,50}{18} =\$2.25[/tex] per issue.
The 12-issue subscription costs [tex] \frac{33,60}{12} =\$2.80[/tex] per issue.
Therefore the 12-issue subscription costs more per issue.
So,
The 18-issue subscription costs [tex] \frac{40,50}{18} =\$2.25[/tex] per issue.
The 12-issue subscription costs [tex] \frac{33,60}{12} =\$2.80[/tex] per issue.
Therefore the 12-issue subscription costs more per issue.
The 18-issue subscription costs 40.50/18. You divide 40.50/18. It is 2.25 per issue
The 12-issue subscription costs 33.60/12. You divide 33.60/12. It is 2.80 per issue
Therefore: The 12-issue subscription costs more than the 18-issue subscription.
The 12-issue subscription costs 33.60/12. You divide 33.60/12. It is 2.80 per issue
Therefore: The 12-issue subscription costs more than the 18-issue subscription.