William has 3 jars of marbles that he wishes to share equally with his brother. in the first jar there are 12 marble in the second jar there are 21 marbles ,and in the third jar there are 17 marbles . write an expression with parentheses to show how many marbles each boy will get? then simplify the expression

Alarge rectangle is divided into four smaller rectangles.

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 =

Do,h = (7, 9) (14, 18) the scale factor is