Marcy rode her bike around a 1/4 mile track 16 times in 30 minutes. What was her speed in miles per hour? PLEASE HELP AND THANK YOU!

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

What is the solution of sqrt x+2-15=-3

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept