How many pregnancies per 100 women may occur in a year while using the patch​

Fewer than 1 in 100 women will get pregnant in a year when using the contraceptive patch correctly. Typical use: around 91% effective. Around 9 in 100 women who use the patch will get pregnant in a year.

Explanation:

i don't think so because different teachers have different materials. tehy teach differently, unless you know for sure your teacher is the exact same as others. i would just contact ur teacher

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.