At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. which of the following methods is mostly likely to be random?
a. you survey customers at the local shopping mall
b. you survey people chosen randomly from the local phonebook
c. you survey several of your friends
d. you survey customers at a popular restaurant

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!