How much money should be deposited today in an account that earns 7% compounded semiannually so that it will accumulate to $8000 in three years? The amount of money that should be deposited is $. (Round up to the nearest cent.)

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

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 =