Answer:
Step-by-step explanation:
The condition of the problem is not sufficient to solve the problem
You can only list equations
4
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Plug in D:
-4(1)^2 + 15(1)^2/5
-4 + 15 / 5
-4 + 3 = -1
I think that Harry should use 1.5-2 cups of flour for his cake. It depends on the size of the cake so if its pretty small, 1.5 cups should work. If you want to take a risk, use more cups of flour.