Answer: 12 and 13
Step-by-step explanation:
a(a + 1) = 156
(a + 13)(a - 12) = 0
a1 = -13 (Room number can't be negative so this is impossible)
a2 = 12, a2 + 1 = 12 + 1 = 13
So the room numbers are 12 and 13
Answer:
Exact Form 109/20
Decimal form 5.45
mixed number form 5 9/20
I hope I'm right
hope this helps
D