A box contains 2 red marbles, 3 white marbles, 4 green marbles, 1 blue marble. Two marbles are drawn at random without replacement. What is the probability of selecting two consecutive red marbles

2/10 x 1/9 =1/45

Step-by-step explanation: Selecting a green marble on the second  draw if the first marble is blue.

4/9

Selecting a white marble on the first  draw and red marble on the second  draw.

 3/10 x 2/9 =1/15

Selecting a red marbles on both draws.

2/10 x 1/9 = 1/45

Selecting a red or white on the first  draw and green or blue on the second  draw.

5/10 x 5/9 = 5/18

the answer is 288..

hope this

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.