If segment AB is 4 units, segment Ad is 23 units, and segment CD is 12 units, what is the length of segment BC?

What is the greatest common factor of 8 and 36

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Complete the standard form of the equation that represents the quadratic relationship displayed above, where a, b, and c are rational numbers.