If sinA=4/5 find the value of sin2A.​

Does delivering the same message over and over again aid in persuasion? what is this technique and how does it work?

What should a person do to prepare for a wildfire? a. know two exit routes for each room in the house b. store extra food in bulk c. have a basement or internal room in the house for shelter d. use sandbags to reinforce doorways and windows

Me asap what are the known causes of cancer?