Best Buy wants to know whether customers liked the televisions they purchased from the store in the past year. The store calls and asks every 4th person who bought a television within the past year whether he or she likes it. Is this sample biased or unbiased? Please explain your reasoning! (Tell why)

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Can anyone explain to me how to do this? anything will .

Azul has 4 green picks and no orange picks. you add orange picks so that there are 2 orange picks for every 1 green pick. how many picks are there now.