Answer:
Part 1: 43.75%
Part 2: 44.07%
Step-by-step explanation:
Hello!
(Pt.1) First, set up a ratio 
. Next, you use long division I got the percent 43.75. After that, you subtract 6 from the girls group, (because of them moving away and then more coming back.) and 2 from the boys group. Then, you subtract those from the school "population" and you get 472 as the final population. So then you set up another ratio, 
. I got a percent of 44.07% from that.
Thanks For Reading!
Answer:
5
Step-by-step explanation:
8x - 6 > 12 + 2x
Subtract 2x from each
8x -2x -6 > 12+2x-2x
6x -6 > 12
Add 6 to each side
6x -6+6 > 12+6
6x > 18
Divide by 6
6x/6 > 18/6
x > 3
The only value greater than 3 is 5
0.33... (it goes on forever)
Since you're looking for the unit rate, you can start do this:
And yes,
is also correct, it's just switching around the 15
