A bag contains 9 blue marbles and 3 red marbles find the probability of one red marble and one blue marble

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

The sum of two numbers is 86, and their difference is 20. find the two numbers

2,10,-50 next two numbers geometric sequence