20% of 106
= 0.20 * 106
= 21.2
21.2 = 10.6% of 21.2 / 0.106
= 200 answer
2. 56 * 0.055 / 0.35
= 8.8
3. 6.4 / 0.8 = 8
The first one is 4•7 I believe
-1/4*x^2-x+3=-1/4*(x^2+4x)+3=-1/4*(x^2+4x+4)+4=-1/4*(x+2)^2+4
x0=-2
-4x + 4 = 6
x = -.5
2x + 10 = 50
x = 20
-3x - 14 = -5
x = -3
2/3x + 2 = 5
x = 4.5
