False.
Using birth control may be affective for whom are in there twenties or older because, there bodies have already fully developed and the have a normal cycle.
Teen's that use birth control have a higher chance of getting pregnant because, there bodies aren't mature or is there cycle. This is why it's false.
In many cases females become pregnant even when on birth control, birth control can't prevent pregancy most of the time. It's not rare for a feamle on birth control to get pregnant.
Answer:
1,800,000,000 ways
Explanation:
Given


Required
Number of ways of selection
From the 8 digits; the first must be nonzero (i.e. any of 1 - 9).
There are 9 ways of selecting this:
The other 7 digits could be any of the 10 digits and there may be repetition.
Each of the digits can be selected in 10 ways. So, the number of ways of selecting the 7 digits is: 
<u>For the alphabets:</u>
The first can be selected from the
letters while the second can be selected from the remaining 
So, the number of ways the alphabets can be selected is: 
<u>Total number of selection is:</u>


False. Airborne illness is contracted by breathing in something that carries a sickness, like a cough or a sneeze.
Answer:
B/c they must be healthy enough to participate in physical activity and they must perform at their own health-levels.
Explanation:
This makes sense because you need to check whether your body is able to stand up to the fitness so that you don’t hurt yourself.
Positive Affirmation is the most important, because reminding yourself every day that you are talented and important can help you find a positive self-image