The percent change is 56.7%
Decrease
Step-by-step explanation:
x% of 120 meals is 52 meals
x% * 120 = 52
x/100 * 120 = 52
x = 52 * 100 / 120
x = 43.3%
100% - 43.3% = 56.7%
The answer is 9. 9x4=36 and 9x7=63. There are no higher factors
3(2x + 4) = -6
6x + 12 = -6
6x = -6 - 12
6x = - 18
x = -18/6
x = -3
Y = a (x + 3)² - 1
Let's take the point (-1;3)
3 = a ( -1 + 3)² - 1
3 = 4a - 1
4a = 4
Therefore a = 4/4 = 1
(x+3)² - 1
= x² + 6x + 9 - 1
= x² + 6x + 8
The answer would be y = x² + 6x + 8.
Hope this helps !
Photon