Someone please help me with these. I forgot how to do these. Need within a hour

What are the first 4 terms in the multiplication pattern given by the formula 2×4n

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

You are shooting hoops after school and make 152 out of a total of 200. what percent of shots did you make? what percent did you miss? show proportion(s).