A coin has heads on one side and tails on the other. The coin is tossed 50 times and lands heads up 19 times. How does this frequency compare to the expected frequency based on
the probability of the coin landing with heads up?

The final cost of a sale is determined by multiplying the price on the tag by 75%. which best describes the function that represents the situation?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

Jan accidently ran 7 minutes longer than he was supposed to. write an expression for the total amount of time jan ran if she was supposed to run m minutes