3x(2x+1)+4(2x+1)=ax^2+bx+c in the equation above, a, b, and c are constants. if the equation is true for all values of x, what is the value of b ?

What is the equation in point slope form of the line that passes through the point (-1, -3) and has a slope of 4? y-1=4(x-3) or y+3=4(x+1)

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

What is negative 3/9 times negative 2/8 ?