Which figure is missing in the pattern?

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period. value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

Which of these triangle pairs can be mapped to each other using two reflections?