Answer:
B
Step-by-step explanation:
B is a function because every input has only one output.
Answer:
56.52 cm
Step-by-step explanation:
The correct expression would be n+40
Add the -8 to the other side making it positive, so it would be y/3=9 then multiply both sides by 3 to get y=27
y/3-8=1
y/3-8+8=1+8
y/3=9
y/3 x 3= 9x3
y=27
So, start at 4. You know that he needs to go up floors, so it would be 4 + 9, which is 13.
He is now on the 13th floor. You also know, that he needs to go down 5 floors. So the equation would look like this:
4 + 9 - 5 = ?
so, 13 - 5 is 8.
The meeting is on the 8th floor.
Hope this helps!!
~Kiwi