Mr. mcdonald gave his math class the following problem. 18 pizzas need to be split among 12 families. how any pizzas does each family get? different people in the class gave different answers. which one is correct?
18\12 9\6 1\2 3\2 9\4 1 1\2
1 3\6 1 1\3
they are all fractions

Factor. 8x2y2 – 4x2y – 12xy 4(8x2y2 – x – 12xy) 4(2xy – 4x2y – 12xy) 4x2y2(2xy – xy –3) 4xy(2xy – x – 3)

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?