Round your answers to the nearest hundredth & show steps! thank you

Solve the triangle. a = 21°, c = 105°, c = 5

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?