The answer is 9bt if you gave me the rest of the question I would maybe be able to get the real answer.
A)
The vertex can be determined using the completing square method.
f(x) = -(x² - 44x + 384)
= -(x² - 44x + 384 + 22² - 22²)
= -(x - 22)² - 384 + 22²
= -(x - 22)² + 100
The vertex is (22 , 100) and this means that the maximum profit(due to negative sign of coefficient of x) is $100 and is achieved when 22 combos are sold
B) 0 = -(x - 22)² + 100
x - 22 = 10
x = 32
x - 22 = -10
x = 12
This means the shop gains no profit when it sells 32 or 12 combos, and this can be due to the production cost being equal to the money gained via sales.
Factor both numbers down, take all the prime numbers from the factorized 21 and 12 and multiply them
2*2 x 3 x 7
The answer is
-15See the attached image for the steps on how I got that answer.
If you divide both the top and bottom of the fraction by 25 you get 29/40
