Plz solve for x and show work

If 20% of a number is 35, what is 50% of that number?

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

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 =