Math lol Using the formula d = r t , which of the following statements is not true?

If r = 5 and t = 3, then d = 15.
If r = 3 and t = 5, then d = 8.
If r = 3 and t = 4, then d = 12.
If r = 4 and t = 2, then d = 8.

Aportion of a line bounded by two points is defined as

What situation is an example of an observational study

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?