Sandra is selling brownies to save money for the French Club. The equation f (x)=0.5x-10 represents her profit, f(x), for selling x brownies. Which statement is true about the value of f(78) A. the value f(78)=29 and it represents a profit of 29 dollars after selling 78 brownies
B the value f(78)=29 and it represents a profit of 78 dollars after selling 29 brownies
C The value f(78)=49 and it represents a profit of 49 dollars after selling 78 brownies
D the value f(78)=49 and it represents a profit of 78 dollars after selling 49 brownies

this is a very good question

step-by-step explanation:

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step-by-step explanation:

answer is  

c.

36

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)