EXPALNATION When adjusting the ammount of oxygen the fooodwill be preserverd longer, this happens when you cutt an apple it starts to turn brown.
I believe the first one you must talk to should be your mom or dad.
They should be concerned about his integument system. Skeletal would be bones respiratory would be breathing muscular would be muscle soreness.
There are several ways to do this:
- Social media
- Word of mouth to friends, family, relatives
- Newspaper ads
- Events section in magazines/newspapers
Your answer would be A: 24
because 20% of 30 is 6 and because he wants to decrease it by 20% (or 6) it would make your answer 24.
20% into a decimal is .20
.20 divided by 30=6