Determine the y-value of each ordered pair based on the given x-value

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

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*