Answer:
1/5
Step-by-step explanation:
(3−1)(5−1)
=
1
15
(Decimal: 0.066667)
441 seats are being used :]
136
(6-10i)(6+10i)
36 +60i - 60i - 100i²
36 - 100i² (i² = -1)
36 + 100