Acomputer is programmed to make 100 draws at random with replacement from the box , and take their sum. it does this 144 times; the average of the 144 sums is 21.13. the program is working fine. or is it?
a. working fine
b. something is wrong
choose one option, and explain your reason

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.

$79500

step-by-step explanation:

step-by-step explanation: