Answer:
9
Step-by-step explanation:
Let's say Mark is M and his brother is B.
M+5=B
M+B=23
Now we can solve using subsitution.
M+M+5=23
(Subtract 5 from both sides)
2M=18
M=9
Hope this helped!
Y=5s+8a+200 is the right answer pretty sure
Answer:
35 boys
Step-by-step explanation:
hope it helps
Answer:14.3
Step-by-step explanation:
Hope this helps ツ