Answer:

Step-by-step explanation:
Standard form is written this way: 
However, in this case, we just have to simplify 8x-3y=6-4x, as it is already mostly in standard form.
So, to do this, we have to combine like terms.
The only like terms that can be combined are -4x and 8x.
So, we add 4x to both sides, and we get:
.
The probability that a girl will be selected from the class is 0.7
Answer:
The third one
Step-by-step explanation:
It may help u
Answer:
50%
Step-by-step explanation:
Because 30 is half of 60. And 50% is half of 100% so both 30 and 50% are equivalent in this problem