Body cells need a constant supply of oxygen to function normally . Humans must maintain a blood oxygen level of 95-100% to allow
their body cells to maintain homeostasis.Some illnesses can cause a persons blood oxygen level to be lower than the normal range . If a persons blood oxygen level is 92.4% , by what percent must it be raised to reach the low end of normal (95%)?
Both of the angles make up a straight angle, which is a total of 180 degrees. You basically add up both of the agles which make 180 and you solve from there.
