50 might be the answer because 12÷6=2 so I just multiplied 15×2 and that equaled my answer, 50
2x = 7 + 3
2x = 10
x = 10/2
x = 5
S: {5}
<span>Every integer is a rational number, since each integer n can be written in the form n/1. For example 5 = 5/1 and thus 5 is a rational number. i hope this helps you</span>
It would be i guess 40 and 60 percent
