I need help on what 8+(-3) is

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?

If 20% of a number is 35, what is 50% of that number?

Place the following steps in order to complete the square and solve the quadratic equation,