What are you refering too?
Answer: 99%
But can be 91% if you consider factors like missing pills.
Explanation:Birth control pills are drugs taken to prevent pregnancy.
If you use birth control pills perfectly, the pill's effectively can be 99% but because human beings have differences and imperfections and the tendency to forget or miss pills — birth control pills can be only about 91% effective. That is to say that 9 out of 100 pill users get pregnant each year.
The last one, A hypothesis is valuable whether or not they were correct or not.
Short term: Your heart beats harder and faster and your blood vessels dilate, pushing more blood into your large muscles and raising your blood pressure.
Long term: Consistently elevated heart rate, blood pressure, and stress hormones can increase your odds of heart attack, stroke, and hypertension.
<u>hope this helped and please mark as brainliest <3</u>
Make a plan first then go to look for a buliding to own or rent
