Do the ratios 9:20 and 3:4 form a proportion?

Let w = 4. enter > , < , or = to compare the expressions. 3w² + 1 10w + 8

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.