Me -i promise i will give brainliest- i dont care if there is no explanation, just give me the correct answer

Which math sentence can be used to determine if the triangle is a right triangle?

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?

Construct the graph that models the given situation