Will the product of 1/2 times 8 1/8 be more or less than 8 1/8?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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 =

Which of the following contains a variable?