Select proportional or not proportional to correctly classify each pair of ratios. proportional not proportional 16/36 and 4/9

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6