Answer:
The student (and each of his friends) pays $1320 per semester.
Step-by-step explanation:
Let's first figure out how much he and his friends pay for a semester.
The rent of the apartment is $10560 and the the academic year is 2 semesters, therefore:
$10560 ÷ 2 = $5280 per semester
There are 3 friends and the student which means 4 people who share the payment of the rent in equal shares. Therefore per person, they pay:
$5280 ÷ 4 = $1320 per semester
This means each person (including the student) pays $1320 per month for the apartment.
Hope this helps!!!