Auniversity of florida student earns $15 per day delivering advertising brochures door-to-door, plus 75¢ for each person he interviews. how many people did he interview on a day when he earned $57?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

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?