Answer:
(x+ [ \ 2 \ ])](https://tex.z-dn.net/?f=%5B-3%5D%28x%20%2B%20%5B%5C%206%20%5C%20%5D%29%28x%2B%20%5B%20%5C%202%20%5C%20%5D%29)
(-3, 6 , 2) or (-3 , 2 , 6)
Step-by-step explanation:

262.6/300% for the first 3 test if you were to add another test it would be 400% total and you need 360% of test grades to have an average of 90% and so 360 - 262.6 = 97.4%
Answer:
The total cost y of a meal.....
Step-by-step explanation:
The total cost of the meal Y suggests addition, which if you added the x and w portions, you would end up with y.
The other answers suggest subtraction, division, or multiplication, which is not being illustrated by the model.
820/42=19 11/21
I hope that helps