The answer would be 9 because if you add one more 3rd to the number 6 that would be 3 so 3 * 3 = 9 there are 9 people in the book club
You can factorise the function to get 2 (x^2 - 8x + 7.5) and then complete the square to get 2(x - 4)^2 - 17. Because this shows that the graph has been moved 4 units to the right, the axis of symmetry is x=4.
There are 1000 ml in one liter if you drank 650 ml then:
1000 - 650 = 350
350 ml are left
:)))