Answer:
8
Step-by-step explanation:
3+5=8
you get 8 oranges
5 + 3 = 8 oranges
420
Add W ml
75*100 + W*0 = (75+W)*10
B) -2.5
2x^2 + 5x -3 = 0
(2x - 1)(x + 3) = 0
2x - 1 = 0; 2x = 1, so x = 1/2 = ROOT 1
x + 3 = 0, so x = -3 = ROOT 2
Now add the roots: -3 + 1/2 = - 2 1/2, so the answer is B.