Six more than the product of 21 and a number

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Part of the total score for each program is the sum of five program component scores. on the free program, the sum of these five program component scores is multiplied by a factor of 2.0. yuzuru hanyu, of japan, earned scores of 9.07, 8.96, 8.89, 9.21, and 9.36 for the program components portion of his free program. how many total points did he receive for this portion?

Polynomial that can be factored as (3x-4)(3x+4)