Answer:

Step-by-step explanation:
The Weight of Ingredients to be used by Chef Selena are:
pounds of pasta, - 6 pounds of sauce; and
pounds of onions.
Total Weight of Food Made, x

Since each serving is 
Number of Servings of her dish, y

The two equations needed to solve the problem are therefore:

Answer:
36/25
Step-by-step explanation:
Hope it helps you!
The last option because he spent $135 or more