Choose all expressions equivalent to 4 (4c + 2d) - d A. 160
B. 16c +d
C. 16c + 7d
D. 8(2c + d)-d
E. (4-d) + (4c + 2d)

Cindy uses 1-inch cubes to find the volume of a jewelry box shaped like a rectangular prism. she uses 780 cubes to completely fill the jewelry box with no gaps or overlaps. if the jewelry box is 13 inches long and 5 inches wide, how tall is cindy’s jewelry box?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0