Step-by-step explanation:
4x-2y = 9 ...1
2x-y = -6 ...2
if ...2 × 2
4x-2y = -12
9 is not equal to -12
49 * 3 = 147
147 - 55 - 28 = 64
They scored 64 points the third game
To check the answer do 55 + 64 + 28, which equals 147, and divide that by 3, which equals 49.
Answer:
no clue but good luck bro
Step-by-step explanation:
17. 223.25
18. 12.5
You might want to round though.