Which of the following shows why trapezoid ABCD is congruent to trapezoid A'B'C'D? O A) The trapezoid was reflected across the x-axis and shifted 7 units in the x direction and -3 units in the y direction. O B) The trapezoid was reflected across the y-axis and shifted 6 units in the y direction O C) The trapezoid was reflected across the x-axis and shifted - 3 units in the x direction and 7 units in the y direction D) the trapezoid was shifted 7 units in the x direction and 6 units in the y direction
Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.