Answer:
There are 420 windows.
Step-by-step explanation:
If the ground floor is part of the 20 =>
20.20=400
There are 400 windows.
If the ground floor is not part of the 20=>
20.20+20=420
There are 420 windows.
Answer:
it equals .85 hope this helps!
Step-by-step explanation:
8a + a - 3 = 6a - 2a - 3
1. Add the a's on both sides:
9a - 3 = 4a - 3
2. Shift 4a to the left and -3 to the right of the equals sign (this changes their signs):
9a - 4a = -3 + 3
3. Simplify:
5a = 0
So a = 0
Answer:
b
Step-by-step explanation: