What is the value of the expression? −2/9−(−1/3÷3/5) enter your answer, as a fraction in simplest form, in the box.

An equation where variables are used to represent known values—function notation true or false

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 =

What is the value of x when x + 7 = 21?