Place the indicated product in the proper location on the grid. (1 - 7 x )(1 + 9 x )

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square