you need to solve a system of equations. You decide to use the elimination method. Which of these is not allowed? 2x-3y=12 and -2x+y=8

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

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 volume of this container?