Answer:
Step-by-step explanation:
6.15/5=1.23
The answer is B.
Approximately 14.4 inches I think is the correct answer!
Answer: 20
Step-by-step explanation:
x+y=5
x-y=4
---------
x+y=5
x=4+y
--------
(4+y)+y=5
4+y+y=5
4+2y=5
2y=1
y=0.5
x=4.5
---------
x²-y²=(4.5)²-(0.5)²=20.25-0.25=20
45m+10n-30m
15m+10n
I believe this is right.
