Sarah has blood pressure 183/81, what is Sarah's systolic pressure?

I think it is 183 sorry if I am incorrect

Explanation:

But the systolic pressure is the top number so that makes sense

first one is the correct answer

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.