9514 1404 393
Answer:
Step-by-step explanation:
The equation for the total number of cases is ...
x + y = 20
The equation for the total cost of the cases is ...
20x +30y = 450
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<em>Additional comment</em>
The solution to these equations is (x, y) = (15, 5).
Yes, my dear~♥️.
x=1, y=7
x=2, y=9
x=3, y=11
x=4, y=13
So your answer is point B.)
-4 has a solid dot, so -4 is included in the answer.
3 also has a solid dot, so 3 is also included in the answer.
All points between the two blue dots are also part of the solution.
Answer: Choice A.