My childs teacher marked 10 and 11 wrong? but i think my child choose the right answer. what do you think?

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?

Which system of linear inequalities is graphed? can somebody pleasssse

Which representation has a constant of variation of -2.5