What is the cost of a $40 after a 15% mark-up?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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 collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set