Choose the product.
(3x2 + 2x - 3)(x - 1)
3x2 + 3x - 4
3x3 - 5x2 - 5x+3
3x3 - x2-5x + 3
3x3 + 5x2 - 5x+ 3

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.