In a certain survey, the margin of error was 3.5% How many people were actually surveyed?
Round to the nearest whole person.

And explain how you got it so i can understand future problems : 3

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?