Explanation:
Methamphetamine alters brain structures involved in decision-making and impairs the ability to suppress habitual behaviors .
When a person smokes a cigarette, the body responds immediately to the chemical nicotine in the smoke. Nicotine causes a short-term increase in blood pressure, heart rate, and the flow of blood from the heart. It also causes the arteries to narrow. Carbon monoxide reduces the amount of oxygen the blood can carry.
So we know that 40% of the 35 males are wearing sungalsses
40%=40/100=2/5
'of' means multiply
2/5 times 35 malses are wearing sunglasses
70/5=sunglasses
14=sunglasses
so 14 out of 56 to percent
14/56=0.25
answer is 25%
<span>Within a few minutes after inhaling marijuana smoke, a person's heart rate speeds up, the breathing passages relax and become enlarged, and blood vessels in the eyes expand, making the eyes look bloodshot (red). The heart rate—normally 70 to 80 beats per minute—may increase by 20 to 50 beats per minute or may even double in some cases. Taking other drugs with marijuana can intensify these symptoms.
I hope this helps!</span>