This question is so hard! Can you please help me? In 1980, during the Marathon of Hope, Terry Fox ran 42 km (O) per day, eight hours a day. What was its average speed vector in meters per second (m / s)?

Thank you

What color would an object that reflects green and blue light appear to be in white light? a. blue b. cyan c. magenta d. black

Iwill give brainliest if you answer right : )

If you visited mount shasta city (elevation 900 m [3000 ft.]) and found the outside air temperature to be 27°c (81°f), what would be the air temperature at the summit of mount shasta (elevation 4200 m [14,000 ft.]) at that moment-assuming that the temperature conditions with altitude change at an average, or normal, lapse rate?