D.) Washed your hands first.
It is D.) because when you wash your hands first you're getting all the germs, dirt, or whatever is on your hands, off. Then you go back and put hand sanitizer to then in a sense "clean" it more. Plus who knows what is on that paper towel you just dried your hands with.
Answer: Activities include teaching English, working in orphanages, conservation, assisting non-governmental organizations and medical work. International volunteering often aims to give participants valuable skills and knowledge in addition to benefits to the host community and organization.
Explanation: Volunteers carry out 90 percent of the humanitarian work of the Red Cross. They help victims of disaster, provide care and comfort to ill and injured service members and veterans, teach others lifesaving skills such as First Aid and CPR, help staff blood drives and much more.
There are many ways a company or advertiser is able to control who their target audience is. First they want something effective, like the Tootsie pop commercial, that ranges to everyone, the bright colors and characters were something to pull in the attention of a younger audience, children. But at the same time humor is used to catch everyone.
Depending on your audience, this can range from colors, sounds, characters, and so on. A main way for advertising a younger audience is of course color, and is usually TV advertised. Something for older audience like adults, and elders would be TV, radio, and even the papers, or even flyers in this case.
Other ways to advertise would be public speeches/demonstrations, events, online ads, social media, and so on
Answer:
sin a=-4/5
we have sina=perpendicularp/hypotenuseh=-4/5
let p=-4k
h=5k
by Pythagoras theorem
h²=p²+b²
(5k)²=(-4k)²+b²
25k²-16k²=b²
(3k)²=b²
b=√(3k)²=3k
now
cos a =b/h=3k/5k=3/5