Which sampling method would most likely be used in a poll of voters regarding a referendum calling for a national highway development program ?

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Which of the following parabolas opens down?

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%