Which measurement is most accurate to describe the width of a penny 19 mm 8 cm 1 m or 0.3 km

Is it true or false i’m trying to pass this test so i can leave school

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.