Answer:

Step-by-step explanation:

First, collect and rearrange the like terms.



Then, solve the equation:



So, the answer is
. Hope my solution and explanation can help you. Thank you!
If you still cannot get the point, you can ask me anytime.
6x-42=4x
6x= 4x +42
2x= 42
x=21
Answer:
25%
Step-by-step explanation:
ratio is 3B : 1G (this means, out of 4 sections, 3 are boys and 1 are girls)
this means that 3/4 of class is boys and 1/4 are girls
1/4 equals 25%
Answer:
the answer is 200
Step-by-step explanation:
Here are the answers:
1) C
2) A
3) D
4) B