Laura tiene láminas y 40 están repetidas si coloca 5 en cada página de su álbum ¿cuántas páginas completará laura?​ ayud

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 =

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.