2. Which is the smallest?

(a) -1,

(b) -1/2,

(c) 0,

(d) 3.

-1 since when subtracted from -½ you get positive value

i think -1

Step-by-step explanation:

0=0/1

3=3/1

-1/2=-1/2

-1=-1/1

we can predict that 3/1>0/1  ... but we will have doubt between -1/2 and -1

so we can compare by making them like -

-1/2  >  -2/2

hence , the smallest according to me is -2/2 , which is -1 !

I hope im right!!

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.