$4750 invested at 10% p. a compounded semiannually for 10 years, calculate the interest

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

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

What is the measure of angle 1? a.28 b.152 c.168 d.64