F(x)=y=the amount of money, in dollars , that Kad had after she bought the tickets.
x=price of one ticket
f(x)=-3x+36.75 or y=-3x+36.75
Not sure what your asking here
(5*180)/7=900/7=128.5714285714286
The angle is approximately 129 degrees.
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B
The answer is b. Because you x can be a negative, but you’re squaring it so it will equal a positive, and if you add 4, it is still 4 or greater